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

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

Accepted Answer

Image Analyst
Image Analyst on 27 Sep 2014
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.
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Hassan
Hassan on 13 Oct 2014
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
Image Analyst on 13 Oct 2014
What attached picture? Did you try either of my demos? To plot, have you tried the functions I listed?

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More Answers (1)

Rick Rosson
Rick Rosson on 27 Sep 2014
doc sin
doc cos
doc fft
doc fftshift
doc abs
doc plot
doc stem
  1 Comment
Hassan
Hassan on 13 Oct 2014
thanks for the message would u explain what doc mean cause i am new to matlab ? best regards

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