Re: [Maxima-discuss] draw2d parametric fails on a function defined by cases

[Jaime V. <vi...@fe...>]

On 10/10/24 01:48, Robert Dodier wrote:
> On Wed, Oct 9, 2024 at 2:33 PM Eduardo Ochs<edu...@gm...>  wrote:
>
>>    P(t) := if t <= 6 then [t,4] else [6,10-t];
>>    draw2d(parametric(P(t)[1], P(t)[2], t,0,10));
>>
>> ...
>> yields this error:
>>
>>    draw2d (parametric): non defined variable
>
> As a workaround, one could say something like
>
> P1(t) := if t <= 6 then t else 6;
> P2(t) := if t <= 6 then 4 else 10 - t;
> draw2d (parametric (P1(t), P2(t), t, 0, 10));

Or you could also use instead:

plot2d ([parametric, P1(t), P2(t), [t, 0, 10]]);

Regards,

Jaime