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Replies: 9   Last Post: Oct 17, 2013 12:03 PM

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 A N Niel Posts: 2,255 Registered: 12/7/04
Posted: Oct 17, 2013 7:07 AM

In article <l3ndg8\$g8u\$1@speranza.aioe.org>, Nasser M. Abbasi
<nma@12000.org> wrote:

> On 10/16/2013 11:19 AM, A N Niel wrote:
> > In article <l3hv8e\$nib\$1@speranza.aioe.org>, Nasser M. Abbasi
>
>

> > Well, Abs has no special meaning in Maple. The known function is abs.
> >

>
> opps, thanks. I do not use Maple much actually, and I had my Mathematica
> hat on at the time :) where system functions start with UpperCase. But I
> should have checked.
>
> ok, here is the solve result, for whatever it is worth:
>
> -------------------------------------
> eq:=abs(a^2*abs(b - a)^2 + abs(a)^2*(b^2 - a^2))=
> abs(a)*abs(b - a)*(abs(a)^2 + abs(b)^2 - abs(b - a)^2);
> solve(eq,{a,b});
> ------------------------
> {a = a, b = 0}, {0 < a, 0 < b, b < a}, {b = a, 0 < a},
>
> {0 < a, a < b}, {a = 0, b < 0}, {a < 0, b < a},
>
> {a < 0, a < b, b < 0}, {a = 0, 0 < b}, {b = a, a < 0}
>

With inequalities like that, we must be getting the real solutions.

> ps. it seems Maple functions and packages are written by different
> and some are mixed cases.

When possible, use actual mathematician's notation, like sin(x) or
Re(x). Sometimes explain further, like BesselJ or LambertW. Sometimes
there is an old notation like matrix that is kept for compatibility,
when a new notation like Matrix is introduced.

>
> It is better that CAS system have more consistent naming convention for
> its system commands and symbols.
>
> sorry again for the error.
>
>
> --Nasser
>
>

Date Subject Author
10/14/13 clicliclic@freenet.de
10/14/13 Nasser Abbasi
10/15/13 clicliclic@freenet.de
10/16/13 A N Niel
10/16/13 Nasser Abbasi
10/17/13 A N Niel
10/15/13 Axel Vogt
10/15/13 clicliclic@freenet.de
10/16/13 A N Niel
10/17/13 clicliclic@freenet.de