3-D-plot doesn't look like on Wolfram Alpha

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Niklas Kurz
Niklas Kurz 2020-12-7
评论： Steven Lord 2020-12-15
I'm confused. By typing:
[x,y] = meshgrid(-2:0.2:2)
z = sin(x)./(y.^2+1)
surf(x,y,z)
I receive a totally different plot.

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采纳的回答

Alan Stevens
Alan Stevens 2020-12-8
It looks the same to me as long as you enter
plot sin(x)/(y^2+1) from x=-2 to 2 and y=-2 to 2
into Wolfram Alpha

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