Octave Displacement Matrix

Question

Is there any function in the gnu octave that applies a matrix (similar to the conjugate in matlab, etc.)?

Answer 1

The conjugate is probably not the one you really want.

If you want normal conjugate (conjugate transpose), then x'provide it for you x. (Unconjugated transposition x.', or transpose(x). conj(x)Gives complex conjugate and also works on matrices and vectors.)

adjugate (aka classic adjoint), , Octave . . , det(x)*inv(x). , . . ( , . "" "" - , , , ).

, , SVD ( ) - adj (xy) = adj (y) adj (x). SVD x u, s, v, u * s * v '= x, s , u v . adj (x) = adj (u * s * v ') = adj (v') adj (s) adj (u). - , . . adj (x) = det (v ') v adj (s) det (u) u' = det (v '* u) v adj (s) u'. s - , .