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Re: --->What is the problem with 'ParametricPlot'?
*To*: mathgroup at smc.vnet.net
*Subject*: [mg4668] Re: --->What is the problem with 'ParametricPlot'?
*From*: dmourati at uiuc.edu (Demetri Mouratis)
*Date*: Thu, 22 Aug 1996 03:55:19 -0400
*Organization*: University of Illinois at Urbana
*Sender*: owner-wri-mathgroup at wolfram.com
In article <4ve8rf$iro at dragonfly.wolfram.com>, whoami at hknet.com (Seagull) wrote:
> I input the followings:
> x={Sin[t]}^3
> y={Cos[t]}^3
> ParametricPlot[{x, y}, {t, 0, Pi/2}]
>
> And got the following outputs:
> ParametricPlot::ppcom:
> Function x cannot be compiled; plotting will proceed with the
> uncompiled function.
> ParametricPlot::ppcom:
> Function y cannot be compiled; plotting will proceed with the
> uncompiled function.
> ParametricPlot::pptr:
> x does not evaluate to a pair of real numbers at t = 0..
> ParametricPlot::pptr:
> x does not evaluate to a pair of real numbers at t = 0.0654498.
> ParametricPlot::pptr:
> x does not evaluate to a pair of real numbers at t = 0.1309.
> General::stop:
> Further output of ParametricPlot::pptr
> will be suppressed during this calculation.
>
>
> Can anyone tell me what is wrong?
> Thanks in advance!!
>
> Seagull.
Remove the braces from your x and y definitions.
In[4]:=
x=Sin[t]^3
y=Cos[t]^3
ParametricPlot[{x, y}, {t, 0, Pi/2}]
-------------------------------------------------------------------
Demetri Mouratis
dmourati at uiuc.edu
http://www.wolfram.com/~demetrim/
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