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<a href="#pub-methods">Public Member Functions</a> |
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<p>Abstract base class for mathematical functions.
<a href="classMathFunction.html#details">More...</a></p>
<p><code>#include <Function.h></code></p>
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Inheritance diagram for MathFunction:</div>
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<img src="classMathFunction.png" usemap="#MathFunction_map" alt=""/>
<map id="MathFunction_map" name="MathFunction_map">
<area href="classExpressionItem.html" title="Abstract base class for functions, variables and units. " alt="ExpressionItem" shape="rect" coords="53,0,149,24"/>
<area href="classDataSet.html" title="A data set. " alt="DataSet" shape="rect" coords="0,112,96,136"/>
<area href="classUserFunction.html" title="A user defined mathematical function. " alt="UserFunction" shape="rect" coords="106,112,202,136"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>MathFunction</b> (string name_, int argc_, int max_argc_=0, string cat_="", string title_="", string descr_="", bool is_active=true)</td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>MathFunction</b> (const <a class="el" href="classMathFunction.html">MathFunction</a> *function)</td></tr>
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virtual <a class="el" href="classExpressionItem.html">ExpressionItem</a> * </td><td class="memItemRight" valign="bottom"><b>copy</b> () const =0</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>set</b> (const <a class="el" href="classExpressionItem.html">ExpressionItem</a> *item)</td></tr>
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<tr class="memitem:a5fcfee2c68c2b6bc6c762b6a103ce96a"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#a5fcfee2c68c2b6bc6c762b6a103ce96a">type</a> () const </td></tr>
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<tr class="memitem:a1173ab198af529b3a13e7c8ef01d6d1f"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#a1173ab198af529b3a13e7c8ef01d6d1f">subtype</a> () const </td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>testArgumentCount</b> (int itmp)</td></tr>
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virtual <a class="el" href="classMathStructure.html">MathStructure</a> </td><td class="memItemRight" valign="bottom"><b>calculate</b> (const string &eq, const <a class="el" href="structEvaluationOptions.html">EvaluationOptions</a> &eo=default_evaluation_options)</td></tr>
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virtual <a class="el" href="classMathStructure.html">MathStructure</a> </td><td class="memItemRight" valign="bottom"><b>parse</b> (const string &eq, const <a class="el" href="structParseOptions.html">ParseOptions</a> &po=default_parse_options)</td></tr>
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virtual int </td><td class="memItemRight" valign="bottom"><b>parse</b> (<a class="el" href="classMathStructure.html">MathStructure</a> &mstruct, const string &eq, const <a class="el" href="structParseOptions.html">ParseOptions</a> &po=default_parse_options)</td></tr>
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virtual <a class="el" href="classMathStructure.html">MathStructure</a> </td><td class="memItemRight" valign="bottom"><b>calculate</b> (<a class="el" href="classMathStructure.html">MathStructure</a> &vargs, const <a class="el" href="structEvaluationOptions.html">EvaluationOptions</a> &eo=default_evaluation_options)</td></tr>
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<tr class="memitem:a5ce71d94adcafa5a2d355c9c56cb0632"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#a5ce71d94adcafa5a2d355c9c56cb0632">calculate</a> (<a class="el" href="classMathStructure.html">MathStructure</a> &mstruct, const <a class="el" href="classMathStructure.html">MathStructure</a> &vargs, const <a class="el" href="structEvaluationOptions.html">EvaluationOptions</a> &eo)</td></tr>
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<tr class="memitem:a0074270717bd47293f29e329b093c2f4"><td class="memItemLeft" align="right" valign="top">string </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#a0074270717bd47293f29e329b093c2f4">condition</a> () const </td></tr>
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<tr class="memitem:a689c6835dbe0e1220ad31b96c8844d0c"><td class="memItemLeft" align="right" valign="top">string </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#a689c6835dbe0e1220ad31b96c8844d0c">printCondition</a> ()</td></tr>
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<tr class="memitem:af2f9981fbf8261a885ae89c29ae3d053"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#af2f9981fbf8261a885ae89c29ae3d053">setCondition</a> (string expression)</td></tr>
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<tr class="memitem:ae86cd76dfd30c71c0d6713d06961928c"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#ae86cd76dfd30c71c0d6713d06961928c">testCondition</a> (const <a class="el" href="classMathStructure.html">MathStructure</a> &vargs)</td></tr>
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<tr class="memitem:a306dda710880c06494a136b2be249d79"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#a306dda710880c06494a136b2be249d79">args</a> () const </td></tr>
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<tr class="memitem:ac7fec112842677b8603fd9e02e9716c4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#ac7fec112842677b8603fd9e02e9716c4">minargs</a> () const </td></tr>
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<tr class="memitem:aca9cd30f80c05e660ddfcc0547c770c8"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#aca9cd30f80c05e660ddfcc0547c770c8">maxargs</a> () const </td></tr>
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<tr class="memitem:a36de8d67929af086370267db5f6774ba"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#a36de8d67929af086370267db5f6774ba">args</a> (const string &str, <a class="el" href="classMathStructure.html">MathStructure</a> &vargs, const <a class="el" href="structParseOptions.html">ParseOptions</a> &po=default_parse_options)</td></tr>
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<tr class="memitem:a9b9a901df6e93c6060000cf7e01c9e75"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#a9b9a901df6e93c6060000cf7e01c9e75">lastArgumentDefinitionIndex</a> () const </td></tr>
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<tr class="memitem:af77999be40fd233ceae75013ba48e5e9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classArgument.html">Argument</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#af77999be40fd233ceae75013ba48e5e9">getArgumentDefinition</a> (size_t index)</td></tr>
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<tr class="memitem:ab6e4b5e26c472dc609cde8c3fe2b27c8"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#ab6e4b5e26c472dc609cde8c3fe2b27c8">clearArgumentDefinitions</a> ()</td></tr>
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<tr class="memitem:a21ac51c7ec2484b7ccdc48991a224033"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classMathFunction.html#a21ac51c7ec2484b7ccdc48991a224033">setArgumentDefinition</a> (size_t index, <a class="el" href="classArgument.html">Argument</a> *argdef)</td></tr>
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int </td><td class="memItemRight" valign="bottom"><b>stringArgs</b> (const string &str, vector< string > &svargs)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>setDefaultValue</b> (size_t arg_, string value_)</td></tr>
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const string & </td><td class="memItemRight" valign="bottom"><b>getDefaultValue</b> (size_t arg_) const </td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>appendDefaultValues</b> (<a class="el" href="classMathStructure.html">MathStructure</a> &vargs)</td></tr>
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<a class="el" href="classMathStructure.html">MathStructure</a> </td><td class="memItemRight" valign="bottom"><b>produceVector</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &vargs, int begin=-1, int end=-1)</td></tr>
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<a class="el" href="classMathStructure.html">MathStructure</a> </td><td class="memItemRight" valign="bottom"><b>produceArgumentsVector</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &vargs, int begin=-1, int end=-1)</td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsPositive</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsNegative</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsNonNegative</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsNonPositive</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsInteger</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsNumber</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsRational</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsReal</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsComplex</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsNonZero</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsEven</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsOdd</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &, bool=false) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsUndefined</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsBoolean</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>representsNonMatrix</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &) const </td></tr>
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<tr class="inherit_header pub_methods_classExpressionItem"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classExpressionItem')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classExpressionItem.html">ExpressionItem</a></td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>ExpressionItem</b> (string cat_, string name_, string title_="", string descr_="", bool is_local=true, bool is_builtin=false, bool is_active=true)</td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>destroy</b> ()</td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>isRegistered</b> () const </td></tr>
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void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#af15986a343f2483662754d791c35a526">setRegistered</a> (bool is_registered)</td></tr>
<tr class="memdesc:af15986a343f2483662754d791c35a526 inherit pub_methods_classExpressionItem"><td class="mdescLeft"> </td><td class="mdescRight">For internal use. <br /></td></tr>
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virtual const string & </td><td class="memItemRight" valign="bottom"><b>name</b> (bool use_unicode=false, bool(*can_display_unicode_string_function)(const char *, void *)=NULL, void *can_display_unicode_string_arg=NULL) const </td></tr>
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virtual const string & </td><td class="memItemRight" valign="bottom"><b>referenceName</b> () const </td></tr>
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<tr class="memitem:a0d1072302daaedec9deddea6713c0593 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual const <a class="el" href="structExpressionName.html">ExpressionName</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a0d1072302daaedec9deddea6713c0593">preferredName</a> (bool abbreviation=false, bool use_unicode=false, bool plural=false, bool reference=false, bool(*can_display_unicode_string_function)(const char *, void *)=NULL, void *can_display_unicode_string_arg=NULL) const </td></tr>
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<tr class="memitem:aa67521fb32390a531fee248a8b14f6d9 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual const <a class="el" href="structExpressionName.html">ExpressionName</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#aa67521fb32390a531fee248a8b14f6d9">preferredInputName</a> (bool abbreviation=false, bool use_unicode=false, bool plural=false, bool reference=false, bool(*can_display_unicode_string_function)(const char *, void *)=NULL, void *can_display_unicode_string_arg=NULL) const </td></tr>
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<tr class="memitem:acffe69f30f05bc81a3178fedfdbd905b inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual const <a class="el" href="structExpressionName.html">ExpressionName</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#acffe69f30f05bc81a3178fedfdbd905b">preferredDisplayName</a> (bool abbreviation=false, bool use_unicode=false, bool plural=false, bool reference=false, bool(*can_display_unicode_string_function)(const char *, void *)=NULL, void *can_display_unicode_string_arg=NULL) const </td></tr>
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<tr class="memitem:a7413c50d093e9358052bb2a9c35e2bab inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual const <a class="el" href="structExpressionName.html">ExpressionName</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a7413c50d093e9358052bb2a9c35e2bab">getName</a> (size_t index) const </td></tr>
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<tr class="memitem:a83e236242f8bc0f43210d8898776168d inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a83e236242f8bc0f43210d8898776168d">setName</a> (const <a class="el" href="structExpressionName.html">ExpressionName</a> &ename, size_t index=1, bool force=true)</td></tr>
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<tr class="memitem:a8a3656e9c691c24600afbb5a7df2c5b4 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a8a3656e9c691c24600afbb5a7df2c5b4">setName</a> (string sname, size_t index, bool force=true)</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>addName</b> (const <a class="el" href="structExpressionName.html">ExpressionName</a> &ename, size_t index=0, bool force=true)</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>addName</b> (string sname, size_t index=0, bool force=true)</td></tr>
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virtual size_t </td><td class="memItemRight" valign="bottom"><b>countNames</b> () const </td></tr>
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<tr class="memitem:a04e3302abecfd9d2fc7bf181304ccda4 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a04e3302abecfd9d2fc7bf181304ccda4">clearNames</a> ()</td></tr>
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<tr class="memitem:abf3cd96cea87906a752ffa973c5ccb67 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#abf3cd96cea87906a752ffa973c5ccb67">clearNonReferenceNames</a> ()</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>removeName</b> (size_t index)</td></tr>
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<tr class="memitem:a0e9fa609612b04397d4033b37b9b3dae inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a0e9fa609612b04397d4033b37b9b3dae">hasName</a> (const string &sname, bool case_sensitive=true) const </td></tr>
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<tr class="memitem:a8115b59473d02c382cde0ab480dea5ed inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a8115b59473d02c382cde0ab480dea5ed">hasNameCaseSensitive</a> (const string &sname) const </td></tr>
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<tr class="memitem:a40ab345532130cc0a7a516b7d6ac5695 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual const <a class="el" href="structExpressionName.html">ExpressionName</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a40ab345532130cc0a7a516b7d6ac5695">findName</a> (int abbreviation=-1, int use_unicode=-1, int plural=-1, bool(*can_display_unicode_string_function)(const char *, void *)=NULL, void *can_display_unicode_string_arg=NULL) const </td></tr>
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<tr class="memitem:a33187acb4804c0fba0c598b875cb10ea inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual const string & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a33187acb4804c0fba0c598b875cb10ea">title</a> (bool return_name_if_no_title=true, bool use_unicode=false, bool(*can_display_unicode_string_function)(const char *, void *)=NULL, void *can_display_unicode_string_arg=NULL) const </td></tr>
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<tr class="memitem:ace1a8db6f9f16b7578a65f82b4b5f125 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#ace1a8db6f9f16b7578a65f82b4b5f125">setTitle</a> (string title_)</td></tr>
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<tr class="memitem:ae96453b06c1a5dedd5d09004ef7478f9 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual const string & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#ae96453b06c1a5dedd5d09004ef7478f9">description</a> () const </td></tr>
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<tr class="memitem:a62690803df131d9425eac0ce2fce249b inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a62690803df131d9425eac0ce2fce249b">setDescription</a> (string descr_)</td></tr>
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<tr class="memitem:a30f21643ba083a99d48b55ec9aeb16dc inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual const string & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a30f21643ba083a99d48b55ec9aeb16dc">category</a> () const </td></tr>
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<tr class="memitem:ab6658cbc43ef419652e3fec4561b4638 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#ab6658cbc43ef419652e3fec4561b4638">setCategory</a> (string cat_)</td></tr>
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<tr class="memitem:a1a79171175c1cc6616911e367c8c6e19 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a1a79171175c1cc6616911e367c8c6e19">hasChanged</a> () const </td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>setChanged</b> (bool has_changed)</td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>isLocal</b> () const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>setLocal</b> (bool is_local=true, int will_be_active=-1)</td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>isBuiltin</b> () const </td></tr>
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<tr class="memitem:a2eece465ffdd2cf8a24f4113f7373210 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a2eece465ffdd2cf8a24f4113f7373210">isApproximate</a> () const </td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>setApproximate</b> (bool is_approx=true)</td></tr>
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<tr class="memitem:af3ad14ed01091e6de7a96bbd290ac024 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#af3ad14ed01091e6de7a96bbd290ac024">precision</a> () const </td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>setPrecision</b> (int prec)</td></tr>
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<tr class="memitem:a6644d3cfdbf78a4a03534a0481ce1784 inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#a6644d3cfdbf78a4a03534a0481ce1784">isActive</a> () const </td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>setActive</b> (bool is_active)</td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>isHidden</b> () const </td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>setHidden</b> (bool is_hidden)</td></tr>
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<tr class="memitem:aa3444de71e4474cbfa975118f6a255fc inherit pub_methods_classExpressionItem"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classExpressionItem.html#aa3444de71e4474cbfa975118f6a255fc">refcount</a> () const </td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>ref</b> ()</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>unref</b> ()</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>ref</b> (<a class="el" href="classExpressionItem.html">ExpressionItem</a> *o)</td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>unref</b> (<a class="el" href="classExpressionItem.html">ExpressionItem</a> *o)</td></tr>
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virtual <a class="el" href="classExpressionItem.html">ExpressionItem</a> * </td><td class="memItemRight" valign="bottom"><b>getReferencer</b> (size_t index=1) const </td></tr>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>changeReference</b> (<a class="el" href="classExpressionItem.html">ExpressionItem</a> *o_from, <a class="el" href="classExpressionItem.html">ExpressionItem</a> *o_to)</td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>testArguments</b> (<a class="el" href="classMathStructure.html">MathStructure</a> &vargs)</td></tr>
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virtual <a class="el" href="classMathStructure.html">MathStructure</a> </td><td class="memItemRight" valign="bottom"><b>createFunctionMathStructureFromVArgs</b> (const <a class="el" href="classMathStructure.html">MathStructure</a> &vargs)</td></tr>
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virtual <a class="el" href="classMathStructure.html">MathStructure</a> </td><td class="memItemRight" valign="bottom"><b>createFunctionMathStructureFromSVArgs</b> (vector< string > &svargs)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-attribs"></a>
Protected Attributes</h2></td></tr>
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MathFunction_p * </td><td class="memItemRight" valign="bottom"><b>priv</b></td></tr>
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int </td><td class="memItemRight" valign="bottom"><b>argc</b></td></tr>
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int </td><td class="memItemRight" valign="bottom"><b>max_argc</b></td></tr>
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vector< string > </td><td class="memItemRight" valign="bottom"><b>default_values</b></td></tr>
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size_t </td><td class="memItemRight" valign="bottom"><b>last_argdef_index</b></td></tr>
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string </td><td class="memItemRight" valign="bottom"><b>scondition</b></td></tr>
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<tr class="inherit_header pro_attribs_classExpressionItem"><td colspan="2" onclick="javascript:toggleInherit('pro_attribs_classExpressionItem')"><img src="closed.png" alt="-"/> Protected Attributes inherited from <a class="el" href="classExpressionItem.html">ExpressionItem</a></td></tr>
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string </td><td class="memItemRight" valign="bottom"><b>scat</b></td></tr>
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string </td><td class="memItemRight" valign="bottom"><b>stitle</b></td></tr>
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string </td><td class="memItemRight" valign="bottom"><b>sdescr</b></td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>b_local</b></td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>b_changed</b></td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>b_builtin</b></td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>b_approx</b></td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>b_active</b></td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>b_registered</b></td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>b_hidden</b></td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>b_destroyed</b></td></tr>
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int </td><td class="memItemRight" valign="bottom"><b>i_ref</b></td></tr>
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int </td><td class="memItemRight" valign="bottom"><b>i_precision</b></td></tr>
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vector< <a class="el" href="classExpressionItem.html">ExpressionItem</a> * > </td><td class="memItemRight" valign="bottom"><b>v_refs</b></td></tr>
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vector< <a class="el" href="structExpressionName.html">ExpressionName</a> > </td><td class="memItemRight" valign="bottom"><b>names</b></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Abstract base class for mathematical functions. </p>
<p>A mathemical function, subclassed from <a class="el" href="classMathFunction.html" title="Abstract base class for mathematical functions. ">MathFunction</a>, should at least reimplement <a class="el" href="classMathFunction.html#a5ce71d94adcafa5a2d355c9c56cb0632">calculate(MathStructure&, const MathStructure&, const EvaluationOptions&)</a> and copy(), and preferably also the represents* functions. <a class="el" href="classArgument.html" title="A mathematical function argument definition with free value and base class for all argument definitio...">Argument</a> definitions should be added in the constructor. </p>
</div><h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">int MathFunction::args </td>
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<p>Returns the maximum number of arguments that the function accepts or -1 if the number of arguments is unlimited. </p>
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<td class="memname">int MathFunction::args </td>
<td>(</td>
<td class="paramtype">const string & </td>
<td class="paramname"><em>str</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="classMathStructure.html">MathStructure</a> & </td>
<td class="paramname"><em>vargs</em>, </td>
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<td class="paramtype">const <a class="el" href="structParseOptions.html">ParseOptions</a> & </td>
<td class="paramname"><em>po</em> = <code>default_parse_options</code> </td>
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<p>Parses arguments from a text string and places them in a vector. The text string should be a comma separated list of arguments.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>The argument string to parse. </td></tr>
<tr><td class="paramname">vargs</td><td>Vector to store parsed arguments in. </td></tr>
<tr><td class="paramname">po</td><td>Parse options. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The number of parsed arguments. </dd></dl>
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<td class="memname">virtual int MathFunction::calculate </td>
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<td class="paramtype"><a class="el" href="classMathStructure.html">MathStructure</a> & </td>
<td class="paramname"><em>mstruct</em>, </td>
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<td class="paramtype">const <a class="el" href="classMathStructure.html">MathStructure</a> & </td>
<td class="paramname"><em>vargs</em>, </td>
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<td class="paramtype">const <a class="el" href="structEvaluationOptions.html">EvaluationOptions</a> & </td>
<td class="paramname"><em>eo</em> </td>
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<td>)</td>
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<p>The main function for subclasses to reimplement. Calculates a value from arguments in vargs and puts it in mstruct.</p>
<p>This function expects the number of arguments to be equal to the maximum number of arguments, and checked by the argument definitions.</p>
<p>If the return value is negative, then argument -(return value) has been evaluated in mstruct. If -(return value) is greater than max arguments, then mstruct is a vector of evaluated argument values.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[out]</td><td class="paramname">mstruct</td><td>Structure that is set with the result of the calculation. </td></tr>
<tr><td class="paramdir"></td><td class="paramname">vargs</td><td>Arguments passed to the mathematical function. </td></tr>
<tr><td class="paramdir"></td><td class="paramname">eo</td><td>Evaluation options. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>1 if the calculation was successful. </dd></dl>
<p>Reimplemented in <a class="el" href="classUserFunction.html#aeb9215783f3ea3c0dd339a07903bddb3">UserFunction</a>, and <a class="el" href="classDataSet.html#a2506fe9079ff6f7ac2f0d6c02b322efe">DataSet</a>.</p>
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<td class="memname">void MathFunction::clearArgumentDefinitions </td>
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<p>Removes all argument definitions for the function. </p>
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<td class="memname">string MathFunction::condition </td>
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<p>Returns the functions condition expression.</p>
<dl class="section return"><dt>Returns</dt><dd>The function's condition expression </dd></dl>
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<td class="memname"><a class="el" href="classArgument.html">Argument</a>* MathFunction::getArgumentDefinition </td>
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<p>Returns the argument definition for an argument index.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">index</td><td><a class="el" href="classArgument.html" title="A mathematical function argument definition with free value and base class for all argument definitio...">Argument</a> index. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The argument definition for the index or NULL if no the argument was not defined for the index </dd></dl>
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<td class="memname">size_t MathFunction::lastArgumentDefinitionIndex </td>
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<p>Returns the index of the last argument definition.</p>
<dl class="section return"><dt>Returns</dt><dd>The index of the last argument definition </dd></dl>
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<td class="memname">int MathFunction::maxargs </td>
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<p>Returns the maximum number of arguments that the function accepts or -1 if the number of arguments is unlimited. </p>
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<td class="memname">int MathFunction::minargs </td>
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<p>Returns the minimum number of arguments for the function. </p>
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<td class="memname">string MathFunction::printCondition </td>
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<p>Print the function's condition expression with argument names.</p>
<dl class="section return"><dt>Returns</dt><dd>The printed condition </dd></dl>
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<td class="memname">void MathFunction::setArgumentDefinition </td>
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<td class="paramtype"><a class="el" href="classArgument.html">Argument</a> * </td>
<td class="paramname"><em>argdef</em> </td>
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<p>Set the argument definition for an argument index.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">index</td><td><a class="el" href="classArgument.html" title="A mathematical function argument definition with free value and base class for all argument definitio...">Argument</a> index. </td></tr>
<tr><td class="paramname">argdef</td><td>A newly allocated argument definition </td></tr>
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<td class="memname">void MathFunction::setCondition </td>
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<td class="paramname"><em>expression</em></td><td>)</td>
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<p>Sets the functions condition expression.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">expression</td><td>The function's new condition expression </td></tr>
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<td class="memname">virtual int MathFunction::subtype </td>
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<td> const</td>
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<p>Returns the subtype of the mathematical function, corresponding to which subsubclass the object belongs to.</p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="Function_8h.html#afec0f104510357adbe8df8a9f3a7ce9a" title="Type of mathematical function. ">FunctionSubtype</a>. </dd></dl>
<p>Implements <a class="el" href="classExpressionItem.html#ab502d8d46b75f60b45e8bcf7dcbf655a">ExpressionItem</a>.</p>
<p>Reimplemented in <a class="el" href="classUserFunction.html#abc53125233703260602bfcb4c3ffb7a5">UserFunction</a>, and <a class="el" href="classDataSet.html#af4c05ff6105adc16f4658d4dc3c7e0bb">DataSet</a>.</p>
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<td class="memname">bool MathFunction::testCondition </td>
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<td class="paramtype">const <a class="el" href="classMathStructure.html">MathStructure</a> & </td>
<td class="paramname"><em>vargs</em></td><td>)</td>
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<p>Test if arguments fulfil the function's condition expression.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">vargs</td><td>Vector with arguments. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true if the arguments fulfil the function's condition expression </dd></dl>
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<td class="memname">virtual int MathFunction::type </td>
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<td> const</td>
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<p>Returns the type of the expression item, corresponding to which subclass the object belongs to.</p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="includes_8h.html#a05f1c0afe6f10792534dbd98fbb7541f" title="Type of ExpressionItem. ">ExpressionItemType</a>. </dd></dl>
<p>Implements <a class="el" href="classExpressionItem.html#a53cbb21250c1c8cc66c6f18a22aa69cf">ExpressionItem</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>libqalculate/<a class="el" href="Function_8h.html">Function.h</a></li>
</ul>
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