www.gusucode.com > matlab 案例源码 matlab代码程序 > matlab/PlotFourQuadrantInverseTangentExample.m
%% Plot Four-Quadrant Inverse Tangent %% % Plot |atan2(Y,X)| for |-4<Y<4| and |-4<X<4|. %% % Define the interval to plot over. [X,Y] = meshgrid(-4:0.1:4,-4:0.1:4); %% % Find |atan2(Y,X)| over the interval. P = atan2(Y,X); %% % Use |surf| to generate a surface plot of the function. Note that |plot| % plots the discontinuity that exists at |Y=0| for all |X<0|. surf(X,Y,P); view(45,45);