Could you add some useful math functions?

[kiffa]

1, To optimize the comparing of the length of vector:
    SimpleVector.length()^2; SimpleVector.distance()^2

2, For animation、camera moving 、physic simulation and so on:
   Interpolation - linear、sin、pow、slerp and so on.

3, For animation、rotation Interpolation:
   Quaternion
 

[EgonOlsen]

I could...but to be honest, this would be very low on my priority list. If you already have some stuff that does this, i would be happy to include it though.