Many students want to divide a circle for string art. For a [url=https://pavpanchekha.com/blog/heart-polar-coordinates.html]Heart[/url]:[br][math]r = \frac{\sin t \sqrt{|\cos t|}}{\sin t + \frac75} - 2\sin t + 2[/math]

Two sliders:[br]n is an interger slider 1...60[br]r is a real value for a radius of a circle 0...4 by 0.1[br]curve01=Sequence[Curve[size r(t) cos(t),size r(t) sin(t), t, i, i + 2π / n], i, 0, 2π - π / n, π / n][br]points = Sequence[(size r(i) cos(i),size r(i) sin(i)), i, 0, 2 π, 2 π /(n-1) ]