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-- Built-in Function: ctranspose (X) Return the complex conjugate transpose of X. This function and x' are equivalent. See also: transpose. A = 1 2 3 4 ans = 1 3 2 4
-- Built-in Function: ctranspose (X) Return the complex conjugate transpose of X. This function and x' are equivalent. See also: transpose.
-- Built-in Function: transpose (X) Return the transpose of X. This function and x.' are equivalent. See also: ctranspose.
-- Built-in Function: X = inv (A) -- Built-in Function: [X, RCOND] = inv (A) Compute the inverse of the square matrix A. Return an estimate of the reciprocal condition number if requested, otherwise warn of an ill-conditioned matrix if the reciprocal condition number is small. In general it is best to avoid calculating the inverse of a matrix directly. For example, it is both faster and more accurate to solve systems of equations (A*x = b) with `Y = A \ b', rather than `Y = inv (A) * b'. If called with a sparse matrix, then in general X will be a full matrix requiring significantly more storage. Avoid forming the inverse of a sparse matrix if possible. See also: ldivide, rdivide.
-- Built-in Function: det (A) -- Built-in Function: [D, RCOND] = det (A) Compute the determinant of A. Return an estimate of the reciprocal condition number if requested. Programming Notes: Routines from LAPACK are used for full matrices and code from UMFPACK is used for sparse matrices. The determinant should not be used to check a matrix for singularity. For that, use any of the condition number functions: `cond', `condest', `rcond'. See also: cond, condest, rcond.