Question

作业急求解Matlab“编写程序在同一张图上画出y=sin(t)和y=3e^(-0.5t), 这里t∈(0,3π) ,并进行适当标注”

Answer 1

Your code should be written like below.

clear all

theta = 0:.01*pi:3*pi;

y1 = sin(theta);
y2 = 3*exp(-0.5*theta);

plot(theta,y1,theta,y2)
xlabel('theta [Deg]'), ylabel('value');
legend('sin(t)','3exp(-0.5t)','Location','southeast')
grid on, axis image;

The generated graph is shown below.

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