Topic: Arc

[ronjonp]

@Ron, just curious, why the (42 . 4)?

I just used Charle's entmake function. No rhyme or reason other than that 😁

[Lee Mac]

The complement bulge is the inverse number (1 / bulge)

Thanks gile, I hadn't considered that tan((2pi-x)/4) = cot(x/4), that's a nice property.

[gile]

The complement bulge is the inverse number (1 / bulge)

Thanks gile, I hadn't considered that tan((2pi-x)/4) = cot(x/4), that's a nice property.

More generally:
cotan(a) = tan(pi/2 - a)