Problem Detail: I’m trying to interpolate a logarithmic function but it always reaches a singularity due to $log(0)$ being $-infty$ is there a correct way to interpolate logarithmic functions? (as in correct parameters) What i’m currently going for is $y=a+b log(cx)$ with initial values $a=0$, $b=1$, $c=0$
Asked By : Jean-Luc Nacif Coelho
Answered By : user35945
The general fitting formula for pretty much any function is $F(x)=a*x+b$ so if you have a function inside a function it would be $F(G(x))=a*G(c*x+d)+b$ by virtue of substitution. You made a tiny error. Instead of $y=a+b log(cx)$ you probably want $y=a+b log(cx + d)$ try to fit your function again. a multiplier should never equal to zero, because that would imply you don’t have a function of $x$.
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Question Source : http://cs.stackexchange.com/questions/25945
