Topic: Trigonometric Equations for Piecewise Spirals

Spirals made of semicircles:

Post's attachments

Attachment icon circle_spirals.grf 5.08 kb, 214 downloads since 2016-07-12 

Re: Trigonometric Equations for Piecewise Spirals

You can replace semicircles with $matches[1].

Note that the custom function sgn is different from the built-in function sign.

Post's attachments

sgn.png, 3.68 kb, 450 x 450
sgn.png 3.68 kb, 167 downloads since 2016-07-12 

sign.png, 3.83 kb, 450 x 450
sign.png 3.83 kb, 232 downloads since 2016-07-12