/usr/include/octave-4.0.0/octave/CollocWt.h is in liboctave-dev 4.0.0-3ubuntu9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (C) 1993-2015 John W. Eaton
This file is part of Octave.
Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, see
<http://www.gnu.org/licenses/>.
*/
#if !defined (octave_CollocWt_h)
#define octave_CollocWt_h 1
#include <iosfwd>
#include "dMatrix.h"
#include "dColVector.h"
class
OCTAVE_API
CollocWt
{
public:
CollocWt (void)
: n (0), inc_left (0), inc_right (0), lb (0.0), rb (1.0),
Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (false) { }
CollocWt (octave_idx_type nc, octave_idx_type il, octave_idx_type ir)
: n (nc), inc_left (il), inc_right (ir), lb (0.0), rb (1.0),
Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (false) { }
CollocWt (octave_idx_type nc, octave_idx_type il, octave_idx_type ir,
double l, double rr)
: n (nc), inc_left (il), inc_right (ir), lb (l), rb (rr),
Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (false) { }
CollocWt (octave_idx_type nc, double a, double b, octave_idx_type il,
octave_idx_type ir)
: n (nc), inc_left (il), inc_right (ir), lb (0.0), rb (1.0),
Alpha (a), Beta (b), r (), q (), A (), B (), initialized (false) { }
CollocWt (octave_idx_type nc, double a, double b, octave_idx_type il,
octave_idx_type ir,
double ll, double rr)
: n (nc), inc_left (il), inc_right (ir), lb (ll), rb (rr),
Alpha (a), Beta (b), r (), q (), A (), B (), initialized (false) { }
CollocWt (const CollocWt& a)
: n (a.n), inc_left (a.inc_left), inc_right (a.inc_right),
lb (a.lb), rb (a.rb), Alpha (a.Alpha), Beta (a.Beta),
r (a.r), q (a.q), A (a.A), B (a.B),
initialized (a.initialized) { }
CollocWt& operator = (const CollocWt& a)
{
if (this != &a)
{
n = a.n;
inc_left = a.inc_left;
inc_right = a.inc_right;
lb = a.lb;
rb = a.rb;
r = a.r;
q = a.q;
A = a.A;
B = a.B;
initialized = a.initialized;
}
return *this;
}
~CollocWt (void) { }
CollocWt& resize (octave_idx_type nc)
{
n = nc;
initialized = false;
return *this;
}
CollocWt& add_left (void)
{
inc_left = 1;
initialized = false;
return *this;
}
CollocWt& delete_left (void)
{
inc_left = 0;
initialized = false;
return *this;
}
CollocWt& set_left (double val);
CollocWt& add_right (void)
{
inc_right = 1;
initialized = false;
return *this;
}
CollocWt& delete_right (void)
{
inc_right = 0;
initialized = false;
return *this;
}
CollocWt& set_right (double val);
CollocWt& set_alpha (double val)
{
Alpha = val;
initialized = false;
return *this;
}
CollocWt& set_beta (double val)
{
Beta = val;
initialized = false;
return *this;
}
octave_idx_type ncol (void) const { return n; }
octave_idx_type left_included (void) const { return inc_left; }
octave_idx_type right_included (void) const { return inc_right; }
double left (void) const { return lb; }
double right (void) const { return rb; }
double width (void) const { return rb - lb; }
double alpha (void) const { return Alpha; }
double beta (void) const { return Beta; }
ColumnVector roots (void) { if (!initialized) init (); return r; }
ColumnVector quad (void) { if (!initialized) init (); return q; }
ColumnVector quad_weights (void) { return quad (); }
Matrix first (void) { if (!initialized) init (); return A; }
Matrix second (void) { if (!initialized) init (); return B; }
friend std::ostream& operator << (std::ostream&, const CollocWt&);
protected:
octave_idx_type n;
octave_idx_type inc_left;
octave_idx_type inc_right;
double lb;
double rb;
double Alpha;
double Beta;
ColumnVector r;
ColumnVector q;
Matrix A;
Matrix B;
bool initialized;
void init (void);
void error (const char *msg);
};
#endif
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