The torus.c file start with this include directive.

  #include <_time.h>

I'm not sure what that header file is, but commenting it out allowed for a clean compile for me

Man I love toruses/tori

For those inclined to multivariable calculus, do your dopamine crow brain a favor and set pencil to paper.

It's super-intuitive because everything's a circle. The equation for calculating volume is beautiful, and figuring it out is fun.

Just thinking about a wave equation for the graphic is interesting

Reminded me of this recent post: https://www.reddit.com/r/C_Programming/s/ko1Jv1Qxhw

Very cool.

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