integrate((1+tan(x)^2)/tan(x),x);

• Subject: integrate((1+tan(x)^2)/tan(x),x);
• From: Gilles Schintgen
• Date: Wed, 23 Nov 2005 21:32:08 +0100

On Wednesday 23 November 2005 13:07, Nikos Apostolakis wrote:
> I get
>
> log(sin(x)) - ((log(sin^2(x) - 1))/2
>
> both with maxima 5.9.2 and with 5.9.1 in an older machine.

I did some testing:
maxima 5.9.1 cmucl:	log(tan(x))
maxima 5.9.1 gcl:	log(sin(x))-log(sin^2(x)-1)/2
maxima 5.9.1 clisp:	log(tan(x))
maxima 5.9.2 sbcl:	log(tan(x))
maxima 5.9.2 gcl:	log(sin(x))-log(sin^2(x)-1)/2

Regards,

Gilles

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