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On Sun, Apr 3, 2011 at 1:44 PM, Mike Stephens <rubfor / recitel.net> wrote:

> Phillip Gawlowski wrote in post #990664:
>
> > Anecdote:
> > My EE prof used Excel to invert a matrix. Took about 30 minutes, and
> > was far from obvious (I forgot how it was done, since it was
> > definitely something Excel wasn't designed to do), when a specialized
> > tool (Maple in this case), did the same job in one line of code,
> > following the mathematical notation (M_inverse : ^-1).
>
> Would that remark still apply if Excel had - let's say - a function
> MINVERSE() - a similar single line of code?
>
> Well, interestingly, I do believe it does.
>
> Have a look at eg
> http://www.chem.mtu.edu/~tbco/cm3450/Excel_Array_Formulas.pdf
>
> I suspect people don't realise what power Excel has, because hardly
> anyone talks about it. They either talk about everyday corporate number
> crunching or conventional programming lnaguages. Few people think about
> taking Excel's components and mixing them together to solve
> simultanaeous linear equations.
>
> --
> Posted via http://www.ruby-forum.com/.
>
>

Hmm, when you post, it fragments into a new thread in my gmail. I assume
because you change the subject. I'm trying to figure out how to fix it (
http://www.google.com/support/forum/p/gmail/thread?tidca2a74c9f70e02d) but
doesn't look like it will happen any time soon. Meanwhile, I'd be
appreciative if you could just make the new subject be "Re:
#{original_subject}"

(musing: I wonder how ruby-forum knows they are part of the same thread.)

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