Re: --->What is the problem with 'ParametricPlot
- To: mathgroup at smc.vnet.net
- Subject: [mg4683] Re: --->What is the problem with 'ParametricPlot
- From: tharter at nswc.navy.mil (Terry Harter)
- Date: Sun, 25 Aug 1996 18:23:12 -0400
- Organization: Naval Surface Warfare Center, Dahlgren Division
- Sender: owner-wri-mathgroup at wolfram.com
>Seagull wrote:
>
>I input the followings:
>x={Sin[t]}^3
>y={Cos[t]}^3
>ParametricPlot[{x, y}, {t, 0, Pi/2}]
>
...{stuff deleted}...
>
>
>Can anyone tell me what is wrong?
>Thanks in advance!!
>
>Seagull.
Look at the manual under function definitions. Instead write
x[t_] := (Sin[t])^3
y[t_] := (Cos[t])^3
graphics = ParametricPlot[{x[t], y[t]}, {t, 0, Pi/2}]
Anytime MMA sees the pair "{ ... }", it expects a list.
Also, look up delayed assignments. that is what the
assignment operator" := " is doing in the stmt
"stuff[t_] := other stuff"
....Terry