Thread Subject: Urgent Help

Subject: Urgent Help

From: Christian

Date: 14 Mar, 2010 20:40:19

Message: 1 of 3

I am a newbie, very newbie in MATLAB.

I am trying to solve a set of equations that looks like this...

[Pxa Pya 0 0 0]' = [constants]*[0 0 Ua Va Mza]'

I need to solve Pxa, Pya, Ua, Va and Mza...
What shall I do to solve them.

Subject: Urgent Help

From: ImageAnalyst

Date: 14 Mar, 2010 21:02:31

Message: 2 of 3

So presumably [constants] is a 5 by 5 array of known constants. And
you have unknowns on both sides of your equation. Strange.

Well anyway, here's one answer for you (of which I think there could
be an infinite number more):
They're all zero.
How's that for a solution? It works!
Now, do you want to explain what you really want to do? Is this some
kind of least squares situation you're trying to formulate?

Subject: Urgent Help

From: Christian

Date: 16 Mar, 2010 07:29:05

Message: 3 of 3

ImageAnalyst <imageanalyst@mailinator.com> wrote in message <fe91cc17-d412-4a9c-a50b-53dc75ef8361@a18g2000yqc.googlegroups.com>...
> So presumably [constants] is a 5 by 5 array of known constants. And
> you have unknowns on both sides of your equation. Strange.
>
> Well anyway, here's one answer for you (of which I think there could
> be an infinite number more):
> They're all zero.
> How's that for a solution? It works!
> Now, do you want to explain what you really want to do? Is this some
> kind of least squares situation you're trying to formulate?

I am trying to solve for displacements of a certain structure using matrix structural analysis.

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