Searched defs:erf (Results 1 - 5 of 5) sorted by relevance

/illumos-gate/usr/src/head/
H A Dtgmath.h86 #undef erf macro
87 #define erf(x) __tgmath_erf(x) macro
/illumos-gate/usr/src/lib/libm/common/C/
H A Derf.c30 #pragma weak __erf = erf
35 * double erf(double x)
39 * erf(x) = --------- | exp(-t*t)dt
43 * erfc(x) = 1-erf(x)
45 * erf(-x) = -erf(x)
50 * erf(x) = x + x*R(x^2)
51 * erfc(x) = 1 - erf(x) if x in [-.84375,0.25]
56 * | R - (erf(x)-x)/x | <= 2
60 * erf(
282 erf(double x) { function
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/illumos-gate/usr/src/cmd/mailx/
H A Dcmd2.c409 snarf(char linebuf[], int *flag, int erf) argument
428 if (erf) {
509 if (erf) {
/illumos-gate/usr/src/lib/libast/common/uwin/
H A Derf.c39 static char sccsid[] = "@(#)erf.c 8.1 (Berkeley) 6/4/93";
58 /* double erf(double x)
62 * erf(x) = --------- | exp(-t*t)dt
66 * erfc(x) = 1-erf(x)
69 * 1. Reduce x to |x| by erf(-x) = -erf(x)
71 * erf(x) = x + x*P(x^2)
72 * erfc(x) = 1 - erf(x) if x<=0.25
77 * is an approximation to (erf(x)-x)/x with precision
80 * | P - (erf(
269 extern double erf(x) function
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/illumos-gate/usr/src/lib/libm1/common/
H A Dlibmv1.c43 #pragma weak erf = __erf macro

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