How embarrasing. The case was the issue. Thanks Stavros.
On Wed, 2008-05-28 at 11:47 -0400, Stavros Macrakis wrote:
> Please try again using lowercase input -- which gives the correct
> answer in 5.14. Current Maxima (unlike older versions) is
> case-sensitive, so 'SIN' is treated as an undefined function, not as
> the trigonometric function sine, which is written 'sin'.
>
> -s
>
> On Wed, May 28, 2008 at 11:19 AM, David Ronis
> <ronis at ronispc.chem.mcgill.ca> wrote:
> > I just tried the examples listed in the documention you've listed, and
> > may have found a bug in 5.15.0cvs. The last example given in the
> > tutorial is:
> >
> >
> > (c3) foo:X^2*SIN(Y)^4-2*X^2*SIN(Y)^2+X^4*COS(Y)^4-2*X^4*COS(Y)^2+X^4+X^2
> > +1$
> >
> > (c4) trigsimp(foo);
> > 4 2 4 4 2 4
> > (d4) (x + x ) cos (y) - 2 x cos (y) + x + 1
> >
> > /* That helps, but this is better: */
> > (c5) format(foo,%poly(x),trigsimp);
> > 4 4 2 4
> > (d5) x sin (y) + x cos (y) + 1
> >
> > However when I run it I get:
> >
> > (%i1) foo:X^2*SIN(Y)^4-2*X^2*SIN(Y)^2+X^4*COS(Y)^4-2*X^4*COS(Y)^2+X^4+X^2+1$
> > (%i2) trigsimp(foo);
> > 2 4 2 2 4 4 4 2 4 2
> > (%o2) X SIN (Y) - 2 X SIN (Y) + X COS (Y) - 2 X COS (Y) + X + X + 1
> >
> > (%i5) format(foo,%poly(x),trigsimp);
> > 2 4 2 2 4 4 4 2 4 2
> > (%o5) X SIN (Y) - 2 X SIN (Y) + X COS (Y) - 2 X COS (Y) + X + X + 1
> >
> > Which isn't what the tutorial returns.
> >
> > David
> >
> > On Tue, 2008-05-27 at 19:52 -0700, Richard Fateman wrote:
> >> there is actually no reason to expect Maxima to "simplify" an expression to
> >> some arbitrary form that you happen to like;
> >> Maxima has its own particular repertoire of "kinds of simplifications" and
> >> getting exactly the ordering you want may be contrary to its rules. On the
> >> other hand, there is a package that tries to come up with a formatting
> >> arrangement that might allow for something like this form. Bruce Miller
> >> wrote it, and it is called format. e.g. load(format) does it.
> >> documentation?? see http://math.nist.gov/~BMiller/computer-algebra/
> >>
> >>
> >> > -----Original Message-----
> >> > From: maxima-bounces at math.utexas.edu
> >> > [mailto:maxima-bounces at math.utexas.edu] On Behalf Of Andreas Kranz
> >> > Sent: Tuesday, May 27, 2008 1:08 PM
> >> > To: maxima at math.utexas.edu
> >> > Subject: Simplification question
> >> >
> >> > Hello,
> >> >
> >> > as a maxima newbie I've trouble understanding how to achieve
> >> > a certain
> >> > transformation.
> >> >
> >> > Especially I would like the following term:
> >> >
> >> > 2 vx z - r z - l z - 2 n (x - vx) - 2 vz x + r vz + l vz
> >> > - --------------------------------------------------------
> >> > r - l
> >> >
> >> > to be written as:
> >> >
> >> >
> >> > 2(n + vz) -2 vx r + l 2 n vx + r vz + l vz
> >> > --------- x + (----- + -----) z + --------------------
> >> > r - l r - l r - l r - l
> >> >
> >> >
> >> > probably an easy task for maxima but maybe I'm just to blind
> >> > to see how
> >> > to do this.
> >> > I've already experimented with combinations of factorsum,
> >> > factorout and
> >> > friends but
> >> > could not work that out.
> >> >
> >> > Any suggestions?
> >> >
> >> > Bye,
> >> >
> >> > Andreas
> >> > _______________________________________________
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> >> >
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