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looking for numerical method to solve equation involving PolyLogs

Posted 11 years ago

I have this:

VG = Table[i, {i, -30, 30, 0.1}]

VG - (Vch +A* (-PolyLog[2, -E^-BVch] + PolyLog[2, -E^BVch]) ) == 0

A and B are constants. I'm trying to solve for Vch (another table). Any suggestions?

thanks.

POSTED BY: Ethan Torrey
2 Replies
Posted 11 years ago
POSTED BY: Ethan Torrey

Are you trying to solve for exact values, or get a best fit in terms of least squares? It looks like the latter since there are so many points. I'd suggest checking FindFit if that is in fact the case.

POSTED BY: Daniel Lichtblau
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