Does anyone know off-hand which normal arguments cause a subnormal result for a correctly rounded double-precision sin or cos?
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There must be values in the neighborhood of x=PI/2 so that cos(x) becomes subnormal.
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In the [1..2) binade, where the ULP is 2^-52? Nah…
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Ah, yes, now that I think about it.. the derivative is close to 1 in this region so the chances of "hitting" a subnormal number is low..
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