/usr/lib/open-axiom/input/parscurv.input is in open-axiom-test 1.5.0~svn3056+ds-1.
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1 2 3 4 5 6 | --Copyright The Numerical Algorithms Group Limited 1991.
-- test for ParametricSpaceCurve domain
draw(curve(tan(cos(t)),sin(t),cos(t)),t=-12..12)
draw(curve(sin(t),cos(t),sin(t)*cos(t)),t=-12..12)
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