Lines Matching defs:cosh
29 #pragma weak __cosh = cosh
33 * cosh(x)
37 * 1. Replace x by |x| (cosh(x) = cosh(-x)).
40 * 0 <= x <= 0.3465 : cosh(x) := 1 + -------------------
44 * 0.3465 <= x <= 22 : cosh(x) := -------------------
46 * 22 <= x <= lnovft : cosh(x) := exp(x)/2
47 * lnovft <= x < INF : cosh(x) := scalbn(exp(x-1024*ln2),1023)
52 * cosh(x) is |x| if x is +INF, -INF, or NaN.
53 * only cosh(0)=1 is exact for finite x.
66 cosh(double x) {