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jreddy1-Visitor
1-Visitor
Dec 2, 2014 10:47 AM UTC
Solved

defining a variable

hello im solving the equation at the end .But i dont want that unknown variable to be marked in red colour how to solve this problem.

MikeArmstrongAnswer
1-Visitor
Dec 2, 2014 12:55 PM UTC

Or you could just define as T_2_10k like in the attached.

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36 replies

MikeArmstrong1-Visitor
1-Visitor
Dec 2, 2014 10:50 AM UTC

You could make make the formulas dependant on the unknown parameters functions.

Please provide a worksheet if you are unsure.

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jreddy1-VisitorAuthor
1-Visitor
Dec 2, 2014 11:49 AM UTC

Sure mike it will be very helpfull

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MikeArmstrong1-Visitor
1-Visitor
Dec 2, 2014 12:46 PM UTC

Is there a reason you are solving this symbolically?

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Werner_E
Werner_E25-Diamond I
25-Diamond I
Dec 2, 2014 10:54 AM UTC

If the equations you show are just for reference and are not meant of defining variables, you can use the boolean equal sign instead of the assignment :=. That way you would use Mathcad as a simple equation editor.

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Werner_E
Werner_E25-Diamond I
25-Diamond I
Dec 2, 2014 3:27 PM UTC

Here is another approach using a solve block to solve for all six unknowns simultaneously. The benefit is, that after the calculation of T_2_10k we do not need to call function or redefine variables a second time to get the other variables like tau_2_10k or sigma1_2_10k.

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MikeArmstrong1-Visitor
1-Visitor
Dec 2, 2014 3:28 PM UTC

Werner Exinger wrote:

Here is another approach using a solve block to solve for all six unknowns simultaneously. The benefit is, that after the calculation of T_2_10k we do not need to call function or redefine variables a second time to get the other variables like tau_2_10k or sigma1_2_10k.

Certainly the most elegant way

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