cosh

Calculates the hyperbolic cosine of x.

Special Values
x	cosh(x)	invalid?
±∞	±0.0	no

real cosh(real x)
double cosh(double x)
float cosh(float x)
@safe pure nothrow @nogc
float
cosh
(
float x
)

Examples

import std.math.constants : E;
import std.math.operations : isClose;

assert(cosh(0.0) == 1.0);
assert(cosh(1.0).isClose((E + 1.0 / E) / 2));

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std math trigonometry functions