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DanMadsen1-Visitor
1-Visitor
June 29, 2012
Question

Symbolic solving a linear system of equations

  • June 29, 2012
  • 1 reply
  • 2259 views

Hi gang

I'm a new user in this forum, but have used it from time to time when searching for inspiration

1 reply

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ViktorKorobov1-Visitor
1-Visitor
June 29, 2012

See in Mathcad help:

QuickSheets/Solvung Equations/ Solving a Linear System of Equation:

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    DanMadsen1-VisitorAuthor
    1-Visitor
    June 29, 2012

    I've got a set of X equations with X unknows which describe an electrical circuit by nodal analysis. The system is fairly easy to solve when substiting the constants in the system with real values e.g. R.202 := 1 and so forth to determine the unknowns of the system.

    I would like to evaluate this circuit symbolically, which is possible to do with similar systems (a tiny bit simpler, but similar) - but Mathcad chokes on this problem (hang'n'crash).

    I've tried to reduce the number of system equations by substitution/superposition (which did the trick for the other systems when evaluating them 100% symbolically) - but I at an endpass with this system.

    Given, Find() combo doesn't change the lack of Mathcad results.

    I've tried to solve this problem on the following setups:

    Mathcad14 M020

    Mathcad 15 M005

    Mathcad 15 M010

    Do anyone in the community have an idea of how to symbolically solve a "complicated" linear system of equations using either:

    (vector of equations),solve(unknowns) or

    the given,find(unknowns) combo?

    Tips'n'tricks and if you have another approach, then suggestions are more than welcome

    Best regards
    Dan

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