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Left Matrix Division [message #77688]

Sun, 18 September 2011 09:53

mankoff
Messages: 131
Registered: March 2004

Senior Member

Hi,

I'm trying to do some matrix division, something which in MATLAB is
done

r = a\b

where A is m row x n column and B is an n column matrix and the result
is and m x 1 column matrix.

I think this is called left matrix division and is equal to "b^(-1)
times a", but am having trouble inverting B as it is a column vector.
I have been looking into IMSL_INV as I have not found any other IDL
functions that claim to invert a matrix or do matrix division.

Any help will be much appreciated.

Thanks,

-k.

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