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[MUG] Preferred trig functions in output
| [MUG] Preferred trig functions in output |
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Author: Nathan Sokalski
Posted: 24/03/2000 20:12:34 GMT
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>> From: "Nathan Sokalski"
I seem to remember seeing somewhere that there is a way to specify what
functions (sin, cos, tan, etc.) you would like Maple to try to use to
display the output (display -sin(x)^2 instead of cos(x)^2-1 if sin is
requested, for example). I seem to remember it being related to either the
simplify or combine command. I know about the (expr,trig) variation, but
that's not the same. Because I do not remember where this was and cannot
seem to find it again, I may be wrong. However, if you have any info about
this, please let me know.
Nathan Sokalski
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| [MUG] Re: Preferred trig functions in output |
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Author: Maple Group
Posted: 29/03/2000 15:28:22 GDT
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>> From: Maple Group
Nathan Sokalski wrote:
>| I seem to remember seeing somewhere that there is a way to specify what
>| functions (sin, cos, tan, etc.) you would like Maple to try to use to
>| display the output ...
-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-
Date: Tue, 28 Mar 2000 06:46:15 +0200
From: Helmut Kahovec
To:
Subject: Preferred trig functions in output
Hello Nathan,
Perhaps it is the following you can't remember:
> restart;
> siderel:={cos(x)^2+sin(x)^2=1};
> cos(x)^2-1;
> simplify(%,siderel,[cos(x),sin(x)]);
2
-sin(x)
> simplify(%,siderel,[sin(x),cos(x)]);
2
cos(x) - 1
See A. Heck, "Introduction to Maple" 2nd ed., Springer Verlag New York
1996, pp.372-373.
With kind regards,
Helmut
-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-
Date: Tue, 28 Mar 2000 07:32:57 -0600
From: Herman Jaramillo
To:
Subject: Preferred trig functions in output
Dear Nathan.
Here is a piece of e-mail from
From: "Andre' Poenitz"
Subject: General Questions
To:
Date: Wed, 22 Dec 1999 16:48:31 MET
"
> sin(4*x)*(1-cos(2*x))/(1-cos(4*x))/cos(2*x);
> simplify(convert(%,tan));
sin(x)
------
cos(x)
> simplify(convert(%,tan));
tan(x)
Hope this helps.
Andre'
"
--
Herman Jaramillo phone: 713-689-6503
Research Geophysicist fax : 713-689-6100
Baker Hughes (Western Geophysical) email:
3600 Briarpark Drive (77042-5275)
P.O. Box 2469
Houston, Texas 77252-2469
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