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How to plot discontinous function f(x,y)

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University Glasgow
University Glasgow 2022-9-10
编辑： Torsten 2022-9-10
Please, how do I plot discontinous function of two variables: f(x,y)
z = f(x,y) = x-.8193318913*sin(x)*cos(x)/(cos(x)^2+sinh(y)^2)-(0.2931044702e-2*(0.7500000000e-3*x^2-0.7500000000e-3*y^2+0.1622336517e-1))*sin(x)*cos(x)/(((0.7500000000e-3*x^2-0.7500000000e-3*y^2+0.1622336517e-1)^2+0.2250000000e-5*x^2*y^2)*(cos(x)^2+sinh(y)^2))-0.4396567053e-5*x*y*sinh(y)*cosh(y)/(((0.7500000000e-3*x^2-0.7500000000e-3*y^2+0.1622336517e-1)^2+0.2250000000e-5*x^2*y^2)*(cos(x)^2+sinh(y)^2));
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Torsten
Torsten 2022-9-10
编辑：Torsten 2022-9-10
Ran in:
f = @(x,y) 1./(x+1)+1./(y-1);
x = -2:0.05:2;
y = -2:0.05:2;
[X,Y] = meshgrid(x,y);
Z = f(X,Y);
Z(abs(Z)>1e2) = NaN;
surf(X,Y,Z)

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回答（1 个）

Chunru
Chunru 2022-9-10
Ran in:
syms x y z
f(x, y) = x-.8193318913*sin(x)*cos(x)/(cos(x)^2+sinh(y)^2)-(0.2931044702e-2*(0.7500000000e-3*x^2-0.7500000000e-3*y^2+0.1622336517e-1))*sin(x)*cos(x)/(((0.7500000000e-3*x^2-0.7500000000e-3*y^2+0.1622336517e-1)^2+0.2250000000e-5*x^2*y^2)*(cos(x)^2+sinh(y)^2))-0.4396567053e-5*x*y*sinh(y)*cosh(y)/(((0.7500000000e-3*x^2-0.7500000000e-3*y^2+0.1622336517e-1)^2+0.2250000000e-5*x^2*y^2)*(cos(x)^2+sinh(y)^2));
ezplot(f)

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