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Function: log (x)
Represents the natural (base e) logarithm of x.
Maxima does not have a built-in function for the base 10 logarithm or other
bases. log10(x) := log(x) / log(10) is a useful definition.

The definition ln(x) has never existed in Maxima. This is not a wxmaxima or
maxima problem. This should not block the upgrade to maxima 5.19.2
If you do: wxplot2d(log(x),[x,0,50]); you get no errors.

Andres

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