How to plot a special plane x-y=5 with surf function
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Hi there! I am trying to plot special planes such as "x-y=5" and "z=2x" in which one dimension is missing using surf function. I am really confused here. Does anyone have a clue? Many thanks!
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回答 (2 件)
Chunru
2022 年 7 月 20 日
x = (-10:10)';
y = x - 5;
z = [-10 10]';
nz = length(z);
xx = x*ones(1, nz);
yy = y*ones(1, nz);
zz = ones(length(x), 1) * z';
surf(xx, yy, zz)
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Sam Chak
2022 年 7 月 20 日
[X, Y] = meshgrid(-1:2/40:1, -5:5/40:0);
Z1 = X - Y - 5;
surf(X, Y, Z1), hold on
Z2 = 2*X;
surf(X, Y, Z2)
xlabel('x'), ylabel('y'), zlabel('z')
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