How can i implement fft on sine wave then plot it ?

i want to do fft of the sin wave then want to see the plot of it

Answer 1

[Image Analyst]

Did you try sin(), fft(), imag(), and real(), and plot()? I attach two demos that I have that do FFTs. They probably don't do exactly what you asked but they may be instructive anyway.

[Hassan]

Thanks for your message i actually tried as in the attached picture to do FFT of the y function and no idea if what ive got is the fft of y function . if its right how can i plot it then ? . best regards

[Image Analyst]

What attached picture? Did you try either of my demos? To plot, have you tried the functions I listed?

Answer 2

[Rick Rosson]

doc sin
doc cos
doc fft
doc fftshift
doc abs
doc plot
doc stem

[Hassan]

thanks for the message would u explain what doc mean cause i am new to matlab ? best regards