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Scilab help >> Elementary Functions > Trigonometry > coshm

coshm

matrix hyperbolic cosine

Calling Sequence

t=coshm(x)

Arguments

x,t

real or complex square matrix

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
<< cosh Trigonometry cosm >>

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Last updated:
Thu May 12 11:44:14 CEST 2011