Because integrate(1/x,x) = log(abs(x)) is OK on either the negative or
positive
real axis, but it is not OK in the complex plane. There is a switch that
controls
this, however.
(%i199) integrate(1/x,x);
(%o199) log(x)
(%i200) integrate(1/x,x), logabs : true;
(%o200) log(abs(x))
If you want logabs to be true, do
(%i201) logabs : true;
(%o201) true
Barton
-----maxima-bounces at math.utexas.edu wrote: -----
>why?don't?Maxima?gives?log(abs(x))?
>
>(%i49)?integrate(1/x,x);
>(%o49)?log(x)
>
>Best?regards
>
>Pere
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