Solving linear equation

[Brabin777]

Is any formula to solve the below equation in LabVIEW

3*x^^1/2+2*x+7*x^^3/2+2*x^²+5*x^^5/2=2

Thanks in advance

[altenbach]

If you have a formula, it does not depend on the programming language. Nothing to do with LabVIEW.

Is x guaranteed to be positive?

If you don't have a formula, you could e.g. use e.g.  Newton-Raphson with a few iterations starting with a reasonable guess. A nice programming exercise. 😄

[Fewoiz]

Have you tried using the formula node?

[altenbach]

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@Fewoiz wrote:

Have you tried using the formula node?

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It is "=2", not "+2" and he wants to solve for x.

[Fewoiz]

Yeah I know,  I wasn't sure if I was being too simple but assumed that he would know to rewrite the equation so that 2( as a variable) is the input and X is the output. 

X= 0.222647?

[Brabin777]

Thanks to everyone for your valuable inputs.

Atlast i solved the equation by doing some modifications in the vi which i downloaded from forum and am attaching the same vi here

[altenbach]

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Brabin777 wrote:

Atlast i solved the equation by doing some modifications in the vi which i downloaded from forum and am attaching the same vi here

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When quoting somethings from the forum, please include a link! Do you have a link?

Why is the VI so messy?

[altenbach]

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@Brabin777 wrote:

Thanks to everyone for your valuable inputs.

Atlast i solved the equation by doing some modifications in the vi which i downloaded from forum and am attaching the same vi here

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Don't forget that there will be quite a few more roots, some complex. In this case, there is one real root and you can find it as follows using this VI. (Of course you need to make certain assumptions about x). In the more general case, use this VI to sort out the real roots.

[Brabin777]

Thanks

As mentioned earlier here is the link where i got vi to solve the equation https://forums.ni.com/t5/LabVIEW/Solving-Math-Expression-using-Labview/td-p/2113376 

[Shree_Nivas]

Hi,

The „Solve Linear Equations VI“  works differently in PC and in Realtime. When I run the attached VI in the PC (without compilation) it gives TRUE. The same VI when I run in Real time Project (cRIO – with compilation) it gives FALSE.

I have gone through the VIs and I found different function for different target (Default & RT Target). Why its different for various target? The result without compilation (Default) is correct value. How I can use that?

Whether the DLL format is not supported by Realtime?

Thanks & Regards,

Shree