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KV_92984983-Newcomer
3-Newcomer
December 6, 2023
Question

Mathcad matrix problem

  • December 6, 2023
  • 2 replies
  • 1346 views

Hi!

I'm a college student having problems with the creation of the matrix. The informational failure is "Found a similarity while evaluating this expression. You may be dividing by 0 or inverting a similar matrix."

KV_9298498_0-1701825394773.png

KV_9298498_1-1701825438732.png

Please help! 

2 replies

M
MartinHanak24-Ruby III
24-Ruby III
December 6, 2023

Hi,

please attach Mathcad file.

    K
    KV_92984983-NewcomerAuthor
    3-Newcomer
    December 7, 2023

    File attached

    L
    LucMeekes23-Emerald IV
    23-Emerald IV
    February 9, 2024

    Your value Q7 is 0. in hd(Q)  you have Q7^-0.5, which means 1/sqrt(Q7).

    well, if Q7=0, its square root is 0, and you're dividing by 0.

     

    Success!
    Luc

     

    P.S.

    To locate such errors, select the expression with the red error, then from the menu, in the Calculation tab use the error tracing arrows

    LucMeekes_0-1707493020207.png

    to backtrack to the origin.

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