初学matlab，想请教两个正弦函数绘图怎么画

Question

大佬们，这两个图像绘图怎么画出来，感谢！

Answer 1

稍微百度一下都会吧【doge】

t = linspace(-1,0.01, 55)
A = 1
w0 = 2
phi = pi/3
xt = A*sin(w0*t + phi)
yt = 2*e^-1*cos(2*pi*t + pi/3)
plot(x, xt)
plot(x, yt)