Posted by LordOfBikes on Nov 10, 2018; 9:05pm
URL: https://forum.librecad.org/Error-Plotting-Equation-tp5716609p5716618.html

I have no experience with this plugin, but after a look at the source code, I figured it out.

You have to call the plugin for each curve with a single equation like this:


Then use the cos() equation and the sin() + cos() equation with same start/end/step parameters.

With two equations the first one is used for X values and the second for Y values.
This explains your result, you have a circle with radius 100.
Check this with start=0, end=180, this results in a half circle.

Armin