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[MUG] Re: neutral operator
| [MUG] Re: neutral operator |
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Author: Robert Israel
Posted: 23/11/2000 21:31:24 GMT
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>> From: Robert Israel
I wouldn't call it a bug. Apparently somewhere in "solve", or in
something that "solve" calls, the `&*` operator is used. When you
redefine some name that has a standard meaning in Maple, you will
very likely break whatever uses that name. This is the whole
motivation for making some names protected. Maple does allow you to
override the protection, but when you do so it is at your own risk.
Robert Israel
Department of Mathematics http://www.math.ubc.ca/~israel
University of British Columbia
Vancouver, BC, Canada V6T 1Z2
On Tue, 14 Nov 2000, Jean-Pierre Douris wrote:
> I'am working with MapleV release 5.1
> what about this bug?
> > restart;
> > solve(ln(x)/x=0);
>
> 1
>
> Ok it's correct
> > unprotect(`&*`);
> > `&*`:=proc(a,b);a+b;end;
>
> &* := proc(a, b) a + b end
>
> > solve(ln(x)/x=0);
>
> 1
>
> Ok it't correct
> > restart;
> > unprotect(`&*`);
> > `&*`:=proc(a,b);a+b;end;
>
> &* := proc(a, b) a + b end
>
> > solve(ln(x)/x=0);
> why I've nothing solution?
>
>
>
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