Labview equivalent of Excel's "SOLVER"

[Pablo1961]

I've learned how to solve non-linear equations in Excel using Solver.  Is there something equivalent in LabView?

I have an equation:

T = 1 / (A + B*lnX + C*lnX^2 + D*lnX^5)

Where T is temperature and X is resistance of a thermistor.  

Now I'd like to (iteratively) solve for X.

I've looked around the mathematical functions and haven't found anything that sounds like what I'm looking for.

Thanks in advance.

- Paul

[ttrr · Accepted solution]

You can try the Find All Zeros of f(x) VI.

http://zone.ni.com/reference/en-XX/help/371361L-01/gmath/find_all_zeros_of_fx/

[syrpimp]

you can solve it using formula node

on your Labview BD, right click>>Programming>>Structures>>Formula Node

see here

or;

Programming»Structures»MathScript Node

[Pablo1961]

I want the reverse... to compute expected resistance at a given temperature.  

[Pablo1961]

THANKS!, that's exactly what I needed.  The documentation was a little sparse but that VI did exactly what I needed.  It wouldn't converge when I started at 1, but it did when I started at 100,000, for whatever reason.

Once I expressed my equation with a zero, on the left, I entered:

1 / ( 0.00112766979300187 + 0.000234444184128213* ln(c) +  8.47692130592308E-08 * ln(c)^3 + 1.17512193579615E-11*ln(c)^5 ) - 273.15 -  25

into the formula text (where the 25 is the input variable and is concatenated into the formula string each time).

And that worked.