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coshm

matrix hyperbolic cosine

Syntax

t = coshm(x)

Arguments

x, t

real or complex square matrices.

Description

coshm is the matrix hyperbolic cosine of the matrix x. t=(expm(x)+expm(-x))/2. Result may be inaccurate for nonsymmetric matrix.

Examples

A=[1,2;2,4]
acoshm(coshm(A))

See also

  • cosh — hyperbolic cosine
  • expm — square matrix exponential
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with contributors 		Last updated:
Mon May 22 12:37:05 CEST 2023