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st: absolute values from a matrix


From   "Tom Boonen" <[email protected]>
To   [email protected]
Subject   st: absolute values from a matrix
Date   Thu, 9 Nov 2006 09:59:02 -0500

Hi,

is there an elegant way to create a matrix that contains the absolute
values of the entries of another matrix?

Something like:

matrix w = (1 , -1 \ 2,	-2)
matrix list w

*w[2,2]
*c1  c2
*r1   1  -1
*r2   2  -2

* But then:

. matrix w = abs(w)
type mismatch
r(109);

Any ideas? Thank you very much!

Tom
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