numerical methods for natural logarithms

Hello,

I am writing a program that is looking at a sensor exposed to a shower of carbon particles. The data that comes out has to thermally equilibrate but falls along a natural log curve. I want to discover, given a few points of data. there the curve will end up. So - I want to know the constant associated with the Ln curve given just a few data points. Thank you in advance ~ keith

constants associated with Ln

Pardon the lack of clarity in my original post. I think that the data I am looking at is a thermal change. As such the curve it follows is a natural log. I am trying to find "C" where "C" is a constant of the form C*Ln(X). Without seeing the entire curve I want to derive "C" from the data to establish where the curve resolves itself asymptotically. I can provide a spreadsheet along with a description of the physical system involved if you feel that would clarify the problem.

Quote:

Originally Posted by

**HallsofIvy** I don't know what you mean by "the constant associated with the Ln curve". Is your function of the form Cln(x), or ln(x+ C), or ln(x)+ C?