3 equations 3 Unknown values
Hello,I'm trying to solve for 3 values, having 3 equations,See attached file Thnaks in advance for your help!
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1) You had a multiplication sign between Find and the vector of variables Ri2) Using a solve block with numeric evaluation will require you to provide guess values for the solved for variables. (For...
View ArticleRe: 3 equations 3 Unknown values
Correction: Symbolic evaluation without units will give you a solution (I got confused with N and lbf), but a different one, as your system has no unique solution.Symbolic eval with units returns a...
View ArticleRe: 3 equations 3 Unknown values
Dennis Lopez wrote: Hello,I'm trying to solve for 3 values, having 3 equations, Show please the picture of your forces.
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Re: 3 equations 3 Unknown values
No need to calculate the reduced row echolon form manually, you may use rref.But as rank(M)=rank(ME)=2<3 we already know, that we have an infinite number of solutions. You may google "Rouché-Capelli...
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Re: 3 equations 3 Unknown values
rref( ) function sometimes works sometimes doesn't : Best Regards.
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Re: 3 equations 3 Unknown values
Looks like there is a bug in your version (14, if I remember correct).This is what Mathcad 15 M020 comes up with:
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Re: 3 equations 3 Unknown values
I have only Mathcad 14. By the way, and could you do me a favor, give a sreenshot of :in Mathcad 15 M020. Thanks.
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Re: 3 equations 3 Unknown values
I get the same (wrong) result as you. Thats what happens quite often with numeric methods. The symbolics would refuse to evaluate that expression (with an inappropriate error messoge, though).But why...
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