Hi Tamas.
thank you very much. It works.
Best,
Sara
Am 3. April 2012 13:54 schrieb Tamas Papp <tkpapp at gmail.com>:
> On Tue, 03 Apr 2012 13:03:19 +0200, Sara Pashmin wrote:
>
>> Hello,
>>
>> I try to eliminate the right side of the following equation, which I got
>> from algsys-function:
>>
>> a = x+y
>>
>> but rhs(a) gives the answer: "0"
>
> I guess 'a' is not defined. ?rhs returns 0 if 'a' is not an equation (or
> inequality, etc).
>
> You need to assign the resulting equation to a variable and take the
> rhs of that, eg
>
> eq1: 2*x+y=4;
> eq2: x+2*y=5;
> sol:algsys([eq1,eq2],[x,y]);
> solx:sol[1][1];
> soly:sol[1][2];
> rhs(solx); /* gives you 1 */
>
> or do it directly:
>
> rhs(sol[1][1]);
>
> Best,
>
> Tamas
>
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