Hypotrochoids based on formulas in en.wikipedia.org/wiki/hypotrochoid I got to when Google threw this image at me: pinterest.com/pin/pa…-363525001150121862/
Var a, b and c can be set using the _num(erator) / _den(ominator) sliders.
In that image:
[1,7/13,1/13] Yet more spirographs ➿ (variation)
[1,7/13,5/13] Yet more spirographs ➿ (variation)
[1,7/13,7/13] Yet more spirographs ➿ (variation)
[1,7/13,15/13] Yet more spirographs ➿ (variation)
[1,7/5,1/13] Yet more spirographs ➿ (variation)
[1,7/5,5/13] Yet more spirographs ➿ (variation)
[1,7/5,7/13] Yet more spirographs ➿ (variation)
[1,7/5,15/13] Yet more spirographs ➿ (variation)
(When a drawing seems not to have smooth curves increase stepsPerT)
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const showRecipe = 1; //min=0 max=2 step=1 (No, Yes, Yes including parametric equation)const x = '(a-b)*Math.cos(t*2*Math.PI)+c*Math.cos(t*2*Math.PI*(a-b)/b)'; //type=string