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myli-marttila1-Visitor
1-Visitor
January 29, 2017
Question

Solving equations

  • January 29, 2017
  • 3 replies
  • 1688 views

Hi,

Can someone help me to find solution for equations which have specific values. I try determinate model for logged signal that. Please see more attached file.

Thanks in advance

Mika

3 replies

F
Fred_Kohlhepp23-Emerald I
23-Emerald I
January 30, 2017

That's what solve blocks are for.

W
Werner_E25-Diamond I
25-Diamond I
January 30, 2017

You have just two unknowns to solve for but three equations. This usually has no solution. But you can chose two equations and solve:

Find the file attached. It also includes a solve block with minerr, but Fred was faster with this

W
Werner_E25-Diamond I
25-Diamond I
January 30, 2017

Here is a third curvefit approach using Mathcad's "genfit" functon to get the same result as the minerr solve block.

M
myli-marttila1-VisitorAuthor
1-Visitor
January 30, 2017

Hi,

Thanks for you quick answer. I appreciate it. This helps me very much

Regards

Mika

(From Finland)

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