Re: No trace of trace!
- To: mathgroup at smc.vnet.net
- Subject: [mg15135] Re: No trace of trace!
- From: "Allan Hayes" <hay at haystack.demon.co.uk>
- Date: Wed, 16 Dec 1998 03:11:12 -0500
- References: <754ulc$je8@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Peter writes
> hi allan
>
> i actually did try Tr; it was my 2nd guess. but Mathematica doesn't seem to know
> it. i just entered Tr[{{a, b}, {c, d}}] and Mathematica gave back
> Tr[{{a, b}, {c, d}}].
Once more I slipped into using a beta copy of the next version.
So, its coming, and meanwhile
Transpose[{{a, b}, {c, d}},{1,1}]
{a,d}
Plus@@%
a+d
Allan
---------------------
Allan Hayes
Mathematica Training and Consulting
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