<_name>Parametric Curves org.inkscape.effect.param_curves param_curves.py inkex.py 0.0 1.0 true -1.0 1.0 -1.0 1.0 30 false <_param name="funcplotuse" type="description" xml:space="preserve">Select a rectangle before calling the extension, it will determine X and Y scales. First derivatives are always determined numerically. <_param name="pythonfunctions" type="description" xml:space="preserve">Standard Python math functions are available: ceil(x); fabs(x); floor(x); fmod(x,y); frexp(x); ldexp(x,i); modf(x); exp(x); log(x [, base]); log10(x); pow(x,y); sqrt(x); acos(x); asin(x); atan(x); atan2(y,x); hypot(x,y); cos(x); sin(x); tan(x); degrees(x); radians(x); cosh(x); sinh(x); tanh(x). The constants pi and e are also available. cos(3*t) sin(5*t) true false rect