Graphmath.Vec2.perp

You're seeing just the function perp, go back to Graphmath.Vec2 module for more information.

Specs

perp(vec2()) :: vec2()

perp(a) creates a vector perpendicular to another vector a.

a is the vec2 to be perpindicular to.

This returns a vec2 perpindicular to a, to the right of the original a.