UNB/ CS/ David Bremner/ teaching/ cs2613/ books/ mdn/ Reference/ Global Objects/ Math/ Math.cosh()

The Math.cosh() static method returns the hyperbolic cosine of a number. That is,

π™ΌπšŠπšπš‘.πšŒπš˜πšœπš‘(𝚑)=cosh(x)=ex+eβˆ’x2\mathtt{\operatorname{Math.cosh}(x)} = \cosh(x) = \frac{\mathrm{e}^x + \mathrm{e}^{-x}} --> {2}

Syntax

Math.cosh(x)

Parameters

Return value

The hyperbolic cosine of x.

Description

Because cosh() is a static method of Math, you always use it as Math.cosh(), rather than as a method of a Math object you created (Math is not a constructor).

Examples

Using Math.cosh()

Math.cosh(-Infinity); // Infinity
Math.cosh(-1); // 1.5430806348152437
Math.cosh(-0); // 1
Math.cosh(0); // 1
Math.cosh(1); // 1.5430806348152437
Math.cosh(Infinity); // Infinity

Specifications

Browser compatibility

See also