exa5_3.m

有关matlab r2007的实用教程

x=0:0.02:20;
y=sin(x);
z=cos(x);
w=[y;z];
plot(x,w)
xlabel('x轴')
ylabel('y轴')


figure(2)
th=[0:pi/50:3*pi]';
a=[0.5:0.5:5.5];
Y=cos(th)*a;
X=sin(th)*sqrt(25-a.^2);
plot(X,Y)
axis('equal');
xlabel('x轴'),ylabel('y轴')
title('一组 Ellipse曲线')