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Question: Error plotting Contour Plots

Question:Error plotting Contour Plots

Chrissieh18 5 Maple
plot graph input student contourplot
February 20 2012
0

I inputted the folllowing into Maple.

with(plots):
contourplot(x^2*y/(x^4+y^2),x=-1/2..1/2,numpoints=60^2,color=blue);
However it is giving me this error:
Error, (in plot/iplot2d/expression) bad range arguments x = -1/2 .. 1/2, numpoints = 3600
 
I don't understnad why.
My lecturer has completed this graph and I literally just copied what she had written on our worksheet in order to acheive the same graph on my screen but it produced this error.
 
Does anybody know anything about this??
Thanks
Chrissie
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