I'm looking for simple way to fit to an exponential decay with a constant background, so something that looks like:
$y=ae^{-bx}+c$
I have an idea of how to do it without the background. I would just take the log and obtain:
$ln(y)=ln(a)-bx$
And then just use linear algebra to find $ln(a)$ and $b$. I can't seem to do this with the constant background though, because I can't simplify the following:
$ln(y)=ln(ae^{-bx}+c)$
Any ideas?
