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Linear system solution

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Jacopenji

Structural
Feb 7, 2016
1
Good afternoon everybody,
I have a very simple problem: I can't solve a standard 4x4 linear system, using the Given/Find command. Every time I try to run the calculations, it always returns me the classic error message "The variable is undefined", thus I'm quite sure that everithing is well defined, obviouvsly except for the four constants I have to find. I've done this kind of calculations houndreds of times but something like this never happened before. I hope my error isn't too stupid! Thanks for everyone will help me, have a nice day.
P.S. It's the first time I write here, I sincerely hope to have respected all the rules of netiquette and of the forum.
 
 http://files.engineering.com/getfile.aspx?folder=933ebf64-092b-4d56-82c9-58c2832e6600&file=Studio_parametrico_completo.xmcd
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Where are c.1 or c.3 or c.4 defined ?
I see c.2 defined early in the document.
Do you have to put in estimated values to start?
Am I missing something?
 
None of them need to be defined for a symbolic solution.

The big question why symbolic? It's cute, and all that, but cranking on a bunch of algebra isn't necessarily particularly productive.

TTFN
I can do absolutely anything. I'm an expert!
homework forum: //faq731-376 forum1529
 
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