Name
coshm — matrix hyperbolic cosine
Calling Sequence
t=coshm(x)
Parameters
- 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))