[Maxima] Cauchy principal value integral

[Roma]

Richard Fateman пишет:
> for what it is worth, commercial macsyma gives, for
> integrate(1/x,x,-1,2)
>
>   Principal value   log(2)+2*%pi*%i
>
>
> but if intanalysis:false$
>
> then it gives
>
> log(2).
>
>
>
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>   
Hello

Where I can download commercial Macsyma?

Thanks