Maple 10 question

OXOTHUK · science forum beginner Joined: 06 Jul 2006 Posts: 2

Hi,

I am trying to use Maple for some linear algebra computation and I have
a silly problem that drives me crazy. Here's the math input I use:

M:= linalg[matrix](2,2, [c, -I*c, -I*c, c]);

So, I pretty much define a 2x2 matrix. Here's the result of the
execution of this string in text format:

[ c -Ic]
M := [ ]
[Ic c]

Somewhere along the way matrix element m_{2,1} lost its sign. What???
Is there anything wrong in what I am doing?

Rouben Rostamian · science forum addict Joined: 01 May 2005 Posts: 85

In article <1152220839.109950.62830@m79g2000cwm.googlegroups.com>,
OXOTHUK <dmitri.maslov@gmail.com> wrote:

OXOTHUK · science forum beginner Joined: 06 Jul 2006 Posts: 2

Hi,

My version was

Maple 10
as of May 13, 2005

I downloaded an upgrade and my new version,

Maple 10.04
as of May 30, 2006,

does not have this error!!! Now, all calculations seem to work the way
they are supposed to. Thanks a lot!

For those of you who cannot believe me this problem has happened---feel
free to ask me for the Maple 10 version (as of May 13, 2005) which I
still have on a CD.

Dmitri

PS I tried the new syntax before which worked out the same way on the
old verson, meaning with the same exact error. I tried to trick Maple
by multiplying m_{2,1} by sin(-Pi/2), and it did not work either Wink

I
guess it knew what it was doing...

Rouben Rostamian wrote:

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