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Alex Rivera
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Is using float type slower than using double type? I heard that modern Intel and AMD CPUs can do calculations with doubles faster than with floats. What about standard math functions ( sqrt , pow , log , sin , cos , etc.)? Computing them in single-precision should be considerably faster because it should require less floating-point operations. For example, single precision sqrt can use simpler math formula than double precision sqrt . Also, I heard that standard math functions are faster in 64 bit mode (when compiled and run on 64 bit OS). What is the definitive answer on this?
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