Rotating Vectors

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Grey Alien

Ah yes a good ole Matrix. In fact I lied as my TVector type has this method:

	Method Rotate(angle!) 'clockwise
		Local tx# = (x * Cos(angle)) - (y * Sin(angle))
		Local ty# = (x * Sin(angle)) + (y * Cos(angle))	
		x=tx
		y=ty
	End Method

But I like the way Big10p is storing the cos and sin before the main calc to reduce the number of calls to cos and sin. Wonder if it's faster creating those two extra local variables. I guess a test is in order.