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J
jpolubinski1-Visitor
1-Visitor
April 14, 2017
Solved

Link results from Solve Block output for subsequent calculations.

  • April 14, 2017
  • 2 replies
  • 4636 views

I am new to PTC / Mathcad V15.0 but am trying to use this great tool effeciently.  For my job I have solved a problem which involves 8 equations and 8 unknowns.  I have successfully arranged my equations to arrive at the correct solve block answers using the command Find as shown below:

The output naturally provides numeric (in this case...complex) solutions.  Here is where I need help.  With the results I need to conduct additional calculations but it does not seem that Mathcad does not recognize the value of each variable...such as K11 = 0.21675 + 0.19125i.   Must I define these variables manually after the solve block or is there a command which  will link the output to its respective variable.  I plan on using the 8Eqnt/8Ukn solve block to solve for different givens...however, this currently means I need to manually set the correct result for each of the 8 solved variables such as K11:= 0.21675 + 0.19125i.

I appreciate any recommendations.

Thank you.

Jim

Best answer by -MFra-

JP solution.jpg

2 replies

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-MFra-21-Topaz II
21-Topaz II
April 14, 2017

Hi Jim,

We need the relative worksheet so that we can give you some advice.

J
jpolubinski1-VisitorAuthor
1-Visitor
April 14, 2017

Sorry.  I should have included initially.  I attached to my original post.

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-MFra-21-Topaz II
21-Topaz II
April 14, 2017

JP solution.jpg

W
Werner_E25-Diamond I
25-Diamond I
April 17, 2017

I have no idea why this thread just bubbled up in the list of recent content now as it seems there was no activity for three days.

But anyway, for whatever it may be worth, here is a slightly more direct approach.

Its not necessary to use the vector in the find command, I just thought it would save some space.

V
24-Ruby IV
ValeryOchkov24-Ruby IV
24-Ruby IV
April 18, 2017

PS

Find(...)---> does not work in Prime!

W
Werner_E25-Diamond I
25-Diamond I
April 18, 2017

Valery Ochkov wrote:

PS

Find(...)---> does not work in Prime!

Yes, thats one of the things they have broken. A solve block cannot be evaluated symbolically, Thats quite a miss.

But in this case we should be able to find a similar solution using numeric evaluation only. Its just necessary to provide non-real guess values for the searched for variables.

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