plotting functions over domain

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lateef
lateef 2023-3-23
编辑： the cyclist 2023-3-23
how would i go about doing this im constanly getting erros with my current code
Plot the function f (x, y) = (x^2 + 3y^2)e^1−x^2-y^2
over the domain −1 ≤ x ≤ 1, −1 ≤ y ≤ 1.

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采纳的回答

Matt J
Matt J 2023-3-23
Ran in:
fsurf(@(x,y) (x.^2 + 3*y.^2).*exp(1 - x.^2 - y.^2), [-1,1],ShowContours='on');

更多回答（1 个）

the cyclist
the cyclist 2023-3-23
Ran in:
f = @(x,y) (x.^2 + 3*y.^2).*exp(1 - x.^2 - y.^2); % I'm not certain about your notation here
x = -1 : 0.05 : 1;
y = -1 : 0.05 : 1;
[xx,yy] = meshgrid(x,y);
figure
surf(xx,yy,f(xx,yy))
  2 个评论
lateef
lateef 2023-3-23
that code worked thanks if i was to add level curves how would i do that ? would i use the contour command or the meshgrid that used in the example ?
in a single graph, plot some level curves. (A good choice of levels might be c = 0, 0.5, 1, ..., 3.)
the cyclist
the cyclist 2023-3-23
编辑：the cyclist 2023-3-23
Just realizing I did your homework for you

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