x=0:pi/100:4pi; y1=1.5sin(3x)+0.5x; y2=cos(3x)+0.7x; k=find(abs(y1-y2)<=0.015) x3=x(k) y3=cos(3x)+0.7x plot(x,y1,'--') hold on plot(x,y2,':') hold on plot(x3,k,'r') 我这个不知道问题出哪里了 dalao给个正确版本
x=0:pi/100:4pi; y1=1.5sin(3x)+0.5x; y2=cos(3x)+0.7x; k=find(abs(y1-y2)<=0.015) x3=x(k) y3=cos(3x)+0.7x plot(x,y1,'--') hold on plot(x,y2,':') hold on plot(x3,k,'r')