Simply but handy question
- To: mathgroup at smc.vnet.net
- Subject: [mg124815] Simply but handy question
- From: jediwhelan <jediwhelan at googlemail.com>
- Date: Wed, 8 Feb 2012 05:29:04 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
Dear group members,
I am new to mathematica (well, I'm not actually but I haven't used it
in 5 years +).
Is there an easy way to return a matrix X of 1's and 0's to test
whether the entries in Y
are different from zero.
i.e.,
if Y = {{a,b},{0,c}}
Then X would return
X = {{1,1},{0,1}}
This would be handy for very large or complicated matrices where one
would like to know if specific entries are zero?
Many thanks,
Paul
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