cosh

Calculates the hyperbolic cosine of x.

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

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

Examples

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

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