Searched defs:ieee_erf (Results 1 - 1 of 1) sorted by relevance

/external/fdlibm/
H A Ds_erf.c14 /* double ieee_erf(double x)
18 * ieee_erf(x) = --------- | ieee_exp(-t*t)dt
22 * ieee_erfc(x) = 1-ieee_erf(x)
24 * erf(-x) = -ieee_erf(x)
29 * ieee_erf(x) = x + x*R(x^2)
30 * ieee_erfc(x) = 1 - ieee_erf(x) if x in [-.84375,0.25]
35 * | R - (ieee_erf(x)-x)/x | <= 2
39 * ieee_erf(x) = (2/ieee_sqrt(pi))*(x - x^3/3 + x^5/10 - x^7/42 + ....)
43 * point of ieee_erf(x) is near 0.6174 (i.e., ieee_erf(
191 double ieee_erf(double x) function
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