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
See Also
For a list of other transcendental functions, see "Transcendental Mathematical Functions" on page 75.
