coshm

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