matlab编写程序

Question

程序如何修改
t=[0:0.1:pi]
y1=sin(2t)
y2=cos(3t)
plot(t,y1,'b-o')
hold on
plot(t,y2,'k:o')
xlabel('ê±??')
ylabel('·ù?μ')
text(1,sin(2*1),'\fontsize{16}\leftarrowsin(2t) ');

怎样才能实现上图形的M文件

Answer 1

t=[0:0.1:pi];
y1=sin(2*t);
y2=cos(3*t);
plot(t,y1,'b-o','linewidth',1.52)
hold on
plot(t,y2,'k:p','linewidth',1.5)
xlabel('时间')
ylabel('幅值')
title('图形输出');
text(1.1,sin(2*1),'\fontsize{16}\leftarrowsin(2t) ');
text(1.75,0.5,'\fontsize{16}cos(3t)\rightarrow');
grid on;
axis([-0.1,4,-1.5,1.5]);
legend('y1','y2','location','southeast');