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Text File | 1994-09-21 | 616 b | 23 lines | [TEXT/ttxt] |
- factor:
-
- Syntax: factor ( A )
-
- Description:
-
- The factor function computes the LU factorization of the input
- matrix A. Factor returns a list with 3 elements:
-
- lu a matrix containing the LU factors
- pvt a vector containing the pivot indices
- rcond the inverse of the condition estimate
-
- Factor utilizes the LAPACK subroutines DGETRF, DGECON or
- ZGETRF, ZGECON.
-
- Factor returns the results in the above format, so that they
- may be conveniently used with backsub for repetitive
- solutions. The user-function lu will separate the results from
- factor into separate L and U matrices.
-
- See Also: backsub, inv, solve
-