www.gusucode.com > symbolic 源码程序 matlab案例代码 > symbolic/SpecifyRangeForContourPlotExample.m

    %% Specify Plotting Interval
% Plot $\sin(x) + \cos(y)$ over $-\pi/2 < x< \pi/2$ and $0 < y < 5$ by specifying
% the plotting interval as the second argument of |fcontour|.

syms x y
f = sin(x) + cos(y);
fcontour(f,[-pi/2 pi/2 0 5])