e0606.m

来自「《MATLAB 7.X程序设计》-王建卫-源代码及习题答案」· M 代码 · 共 3 行

x=linspace(0,2*pi,30); y=sin(x).*cos(2*x);plot(x,y,'r --') %红色虚线
title(' y=sin(x)*cos(2*x)');xlabel('x'); ylabel(' y=sinxcos2x'); grid 
text(5.5,0,'y=sinxcos2x') %在点(5.5,0)处放置文本y=sinxcos2x