Using Newton Raphson zero finder

[049]

Dear all,

I'm trying to use Newton Raphson zero finder VI, but till now I can't get any result from it.. I want to know the proper way to feed it with an equation.. I need it to solve a Photovoltaic iterative equation

I= Iph - Io*(exp(V+I*Rs) - 1)  + (V+I*Rs)/Rp

I'm looking forward for your help

[altenbach]

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049 wrote:

I'm trying to use Newton Raphson zero finder VI... 

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The Newton Raphson zero finder VI has nothing to do with MathScript. I recommend posting this in the LabVIEW board.

What's the meaning of "can't get any result from it"? This is very soft information.

Possible interpretations: Result is zero? NaN? Wrong?

Do you get an error? What does the error say?

It would also help if you could attach what you got so far, maybe it just needs a simple tweak. 😉

[altenbach]

Continued here.

[preethithesis]

I am trying to find the I-V curve for the soalr panel in Labview. I am having some convergence issues in getting the curves. So though tof trying Newton _ raphson Method to solve the problem.Not sure how to use N-R method in Labview? Will that be a best sollution for my problem.

Can anyone please help me with that ?

I will greatly appreciate your help!!!