Surely the loss in precision of a 32KB LUT for double precision asin() would be unacceptable?
By interpolating between values you can get excellent results with LUTs much smaller than 32KB. Will it be faster than the computation from op, that I don't know.
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By interpolating between values you can get excellent results with LUTs much smaller than 32KB. Will it be faster than the computation from op, that I don't know.