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JM_102417078-Gravel
8-Gravel
February 15, 2025
Solved

Solve block

  • February 15, 2025
  • 2 replies
  • 751 views

I am trying to get the answers using the minerr in solveblock but somehow minerr seems to be doing nothing. Can somebody provide any insights on this what I am doing wrong ? 

Best answer by Werner_E

The guesses you provide yield a non-real result.

Werner_E_0-1739651411579.png

Try to choose guess values which make the expression you want to be zero a real value.

 

Or, if appropriate, you may use the absolute value:

Werner_E_1-1739651548768.png

 

Furthermore I would suggest that you define a function for the constraint

Werner_E_0-1739652512129.png

and use this function in the solve block and to check the result:

Werner_E_1-1739652561281.png

 

Of course you cannot expect a unique solution - you provide just one single equation but have eight variables to jiggle around!

2 replies

W
Werner_E25-Diamond IAnswer
25-Diamond I
February 15, 2025

The guesses you provide yield a non-real result.

Werner_E_0-1739651411579.png

Try to choose guess values which make the expression you want to be zero a real value.

 

Or, if appropriate, you may use the absolute value:

Werner_E_1-1739651548768.png

 

Furthermore I would suggest that you define a function for the constraint

Werner_E_0-1739652512129.png

and use this function in the solve block and to check the result:

Werner_E_1-1739652561281.png

 

Of course you cannot expect a unique solution - you provide just one single equation but have eight variables to jiggle around!

    W
    Werner_E25-Diamond I
    25-Diamond I
    February 15, 2025

    Your equation is VERY sensitive wrt small changes in the input values.

    I played around a bit, formulated three constraints, demanding the Real part, the Imaginary part and also the absolute value to be zero and "weighted" these constraints by multiplying with various powers of 10.

    Here a result with a real valued function value pretty close to zero:

    Werner_E_2-1739653265536.png

    Prime 10 sheet attached

     

      V
      vnamboodheriCommunity Manager
      Community Moderator
      February 21, 2025

      Hello @JM_10241707, 

       

      It looks like you have some responses from our community champion. If any of these replies helped you solve your question please mark the appropriate reply as the Accepted Solution. 
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      Vivek N.
      Community Moderation Team.

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