matrix wise cosine inverse
t = acosm(x)
a real or complex square matrix.
a real or complex square matrix.
t
are cosine inverse of the x
matrix. Diagonalization method is used. For non-symmetric matrices result
may be inaccurate. One has
t=-%i*logm(x+%i*sqrtm(eye()-x*x))
.
A=[1,2;3,4]; cosm(acosm(A)) | ![]() | ![]() |