COSH Function

Calculates the hyperbolic cosine of the input variable.

enabled.

Usage

result = COSH(x)

Input Parameters

x—The angle, in radians, that is evaluated.

Returned Value

result—The hyperbolic cosine of x.

Keywords

None.

Discussion

COSH is defined by:

cosh(x)≡ (e^x + e^-x)/2

If x is of double-precision floating-point data type, or of complex type, COSH yields a result of the same type. All other data types yield a single-precision floating-point result.

If x is an array, the result of COSH has the same dimensions, with each element containing the hyperbolic cosine of the corresponding element of x.

Example

x = [0.3, 0.5, 0.7, 0.9]
PRINT, COSH(x)
; PV-WAVE prints: 1.04534      1.12763      1.25517      1.43309