mch03-02.txt

这是一个关于计算机数学建模的书籍,实用性很强,可作为实际建模的指导资料.

正弦曲线的标注

t=0:pi/20:2*pi;
plot(t,sin(t))
xlabel('t = 0 到 2\pi','FontSize',16)
ylabel('sin(t)','FontSize',16)
title('\it{从 0 to 2\Pi 的正弦曲线}','FontSize',16)


text(3*pi/4,sin(3*pi/4),...
'\leftarrowsin(t) = .707',...
'FontSize',16)
text(pi,sin(pi),'\leftarrowsin(t) = 0',...
'FontSize',16)
text(5*pi/4,sin(5*pi/4),'sin(t) = -.707\rightarrow',...
'HorizontalAlignment','right',...
'FontSize',16)