Re: Tough problem...

Hi!

The solution is not to pass a large argument in the first place, which can
often be achieved if you're dealing with a "physical" problem (in
opposition to "mathematical" problem). The "how" will depend on the
problem, and can range from separating values (number of rotations + angle
instead of an absolute angle) to transforming the math (using
trigonometric formulas, quaternions, etc.), using a converging series or
introducing a well chosen approximation.

This situation occurs in FFT, when the length of the FFT goes in to
million of points. The sin and cos functions become inaccurate when
the i in sin(i*arg) goes in to millions.

Thanks!
Atmapuri



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