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/bionic/libm/src/
H A Ds_expm1.c17 /* expm1(x)
29 * 2. Approximating expm1(r) by a special rational function on
55 * expm1(r) = exp(r)-1 is then computed by the following
59 * expm1(r) = r + --- + --- * [--------------------]
63 * expm1(r+c) = expm1(r) + c + expm1(r)*c
64 * ~ expm1(r) + c + r*c
66 * expm1(r+c). Now rearrange the term to avoid optimization
70 * expm1(
131 expm1(double x) function
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