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Re: >What is the problem with 'ParametricPlot
Posted:
Aug 25, 1996 5:56 PM


>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



