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Text File | 1994-04-25 | 542 b | 26 lines | [TEXT/EDIT] |
- norm:
-
- Syntax: norm( A )
- norm( A , "type" )
-
- Description:
-
- The first form defaults to computing the 1-norm of the input
- matrix. The second form allows the user to specify the desired
- vector or matrix norm.
-
- type:
-
- "M" or "m" returns max(abs( MATRIX ))
-
- "1", "O" or "o" return the 1-norm (default)
-
- "2" returns the matrix 2-norm (largest singular value)
-
- "I" or "i" returns the infinity-norm
-
- "F", "f", "E" or "e" returns the Frobenius norm.
-
- LAPACK subroutines DLANGE and ZLANGE are used to compute all
- norms, except the 2-norm.
-