detReturn determinant of a matrix (computed by LU decomposition; try to avoid det(..)) |
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
Syntax
result = Matrices.det(A);
Description
This function returns the determinant "result" of matrix A computed by a LU decomposition with row pivoting. For details about determinants, see http://en.wikipedia.org/wiki/Determinant. Usually, this function should never be used, because there are nearly always better numerical algorithms as by computing the determinant. Examples:
- Use Matrices.rank to compute whether det(A) = 0 (i.e., Matrices.rank(A) < size(A,1)).
- Use Matrices.solve to solve the linear equation A*x = b, instead of using determinants to compute the solution.
See also
Matrices.rank, Matrices.solveSyntax
result = det(A)
Inputs (1)
| A |
Type: Real[:,size(A, 1)] |
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Outputs (1)
| result |
Type: Real Description: Determinant of matrix A |
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