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02-01-2018
10:03 AM

02-01-2018
10:03 AM

Dear all,

I need to solve a system of non linear equation.

I have a problem with mu(theta) function: if I use this function in given-find system, mathcad not find solution, but if I set a constant value the system is solved.

How can I set the mu function, into the given-find solution to obtain the correct solution?

Best regards

Stefano

Solved! Go to Solution.

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02-01-2018
10:22 AM

02-01-2018
10:22 AM

The symbolics can't deal with numeric interpolation functions - that seems to be the real reason for the error.

But I guess you don't need a symbolic result. Simply provide reasonable guess values and use numeric evaluation:

4 REPLIES 4

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02-01-2018
10:22 AM

02-01-2018
10:22 AM

The symbolics can't deal with numeric interpolation functions - that seems to be the real reason for the error.

But I guess you don't need a symbolic result. Simply provide reasonable guess values and use numeric evaluation:

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02-01-2018
10:35 AM

02-01-2018
10:35 AM

Re: Given-Find Non Linear system solution with interp function

I set the initial guess, but I continue to have a problem. Can you share the file?

Thanks

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02-01-2018
11:20 AM

02-01-2018
11:20 AM

Re: Given-Find Non Linear system solution with interp function

wrote:

I set the initial guess, but I continue to have a problem. Can you share the file?

Already deleted

But I guess you forgot to delete the symbolic evaluation (the arrow -> after Find)

Either use Find(...) without anything after it or use a normal equal sign for numeric evaluation

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02-01-2018
11:56 AM

02-01-2018
11:56 AM

Re: Given-Find Non Linear system solution with interp function

Found it again

See attached