7楼: Originally posted by caoshuiyan at 2015-04-01 17:23:31
可否进一步探讨一下，我发现当我在y那里用了abs画出的图就改变了，不知道什么原因
x=-2*pi:pi/100:2*pi;
y=abs((besselj(0,12.91*sin(x))-besselj(0,5.16*sin(x)))*9.043.*sin(x));
figure
plot(x,real(y)/max ...

Variable x=[-2*pi:pi/100:2*pi],y;
PlotFunction y=(bessj(0,12.91*sin(x))-bessj(0,5.16*sin(x)))*9.043*sin(x);