rectify.rb

Rectification maps values to an limits treated either as cycles, upper bounds, lower bounds or both. Four methods are added to the Numeric class:

wrap_rectify() wraps values to an interval treated as a cycle. Think of it as degrees around a compass.

cut_rectify() cuts off values to keep them between an upper and lower bound.

at_most() cuts off values at an upper bound.

at_least() cuts off value at a lower bound.