标签: matlab plot
**所以基本上我尝试在网上和我的教科书中查找,但我无法弄清楚如何将希腊符号theta插入图例框和轴**
x = linspace(0,2*pi) figure plot(x,sin(x),x,sin(x-0.25),'r--') legend('sin(\theta)','sin(\theta-0.25)') xlabel(' 0 <= \theta <=2 \pi') ylabel('fx') box on grid on