Electronics > Beginners
Need help figuring out how to compare value against a known curve
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rstofer:
Your plot looks like an exponential.  About half way down this page is an example of fitting an exponential curve using Excel:

http://www.engineerexcel.com/nonlinear-curve-fitting-in-excel/

I haven't tried it but it looks pretty nice!  It's also pretty tricky because it tries to use linear math on an exponential.

Again, you get coefficients and then you use them to get a y value from a given x value.
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