# [Maxima] A new Maxima wiki

Richard Hennessy rich.hennessy at verizon.net
Mon Apr 27 17:30:48 CDT 2009

```So would that mean it is okay for me to put in a page with a link to my site for pw.mac?

I was thinking about putting up some examples of pw.mac working.  Like the following...

(out1)                        C:/Maxima-5.18.1/share/maxima/5.18.1/share/contrib/integration/abs_integrate.mac
(%i2) display2d:false;

(out2) false
(%i3) integrate(abs(a*x+b)^3,x);

(out3) a^3*'integrate(x^3*signum(a*x+b)^3,x)+3*a^2*b*'integrate(x^2*signum(a*x+b)^3,x)+3*a*b^2*'integrate(x*signum(a*x+b)^3,x)
+b^3*'integrate(signum(a*x+b)^3,x)

(out4) "C:/Maxima-5.18.1/share/maxima/5.18.1/share/contrib/pw.mac"
(%i5) integrate(abs(a*x+b)^3,x);

(out5) (a^3*x^4/4-b^4/(4*a))*signum(a*x+b)+(a^2*b*x^3+b^4/a)*signum(a*x+b)+(3*a*b^2*x^2/2-3*b^4/(2*a))*signum(a*x+b)
+(b^3*x+b^4/a)*signum(a*x+b)
(%i6) signum_to_abs(%);

(out6) (a^3*x^3+3*a^2*b*x^2+3*a*b^2*x+b^3)*abs(a*x+b)/(4*a)
(%i7) factor(%);

(out7) (a*x+b)^3*abs(a*x+b)/(4*a)
(%i8)

----- Original Message -----
From: "Harald Geyer" <harald at lefant.net>
To: "Alexey Beshenov" <al at beshenov.ru>
Cc: <maxima at math.utexas.edu>
Sent: Sunday, April 26, 2009 2:05 PM
Subject: Re: [Maxima] A new Maxima wiki

> > Please note that I'm not complaining about me not being in the
> > editor group but rather that there is such a restriction at all.
> > I think anybody who has an account on SF should be able to edit
> > the wiki without any further bureaucracy.
>
> I absolutely agree with you, but I don't know how to change this
> setup at SF. I'm periodically checking the user list and adding every
> new user to the editor group.
>
> https://apps.sourceforge.net/mediawiki/maxima/index.php?title=Special:ListUse
> rs
>
> I hope we'll setup a standalone MediaWiki soon.

I see. Is there any reason to use MediaWiki? Perhaps switching to
ikiwiki would be easier? (No need to maintain a db, *much* less
resources needed, ...)

HTH,
Harald
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