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Info_Mac IV CD-ROM (Pacific HiTech Inc.)(August 1994).iso
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norm
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1994-04-25
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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.