max, min for rows and columns?

• Subject: max, min for rows and columns?
• From: van Nek
• Date: Mon, 20 Aug 2007 18:48:06 +0200

Am 20 Aug 2007 um 12:25 hat Sheldon Newhouse geschrieben:

> Hello,
>  Is there a function giving the max and min of the rows of a matrix ?

The functions row and col return matrices, so lmin and lmax (which need lists) can't be 
applied directly. Possible is for example

(%i1) M: matrix([1,2,3],[4,5,6])$
(%i2) row(M,1)[1];
(%o2) 				   [1, 2, 3]
(%i3) lmax(%);
(%o3) 				       3
(%i4) transpose(col(M,1))[1];
(%o4) 				    [1, 4]
(%i5) lmin(%);
(%o5) 				       1


HTH
Volker van Nek

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