I represent a lookup table for several exponents during lighting. Values are computed based on linear interpolation between the stored elements. New tables are created by providing a one argument initialization block from which I am created.

	initialize
	initializeFrom:

	instance creation
	new numElements using:

	accessing	top
	valueAt: Return the table approximation for the given float value

	initialize	top
	initializeFrom:

	class initialization	top
	initialize B3DExponentTable initialize

	instance creation	top
	new Answer a new instance of me, with size = 0.
	numElements
	using: Create a new exponent table using aBlock as initialization