Hello. I have recently transferred courses, and am expected to know how to use Matlab, but have never been taught before. Therefore I have been trying to go through and teach myself some of the bits I will need to know from it. We were told we had to know how to do certain things already and I have been going through these. Create a sine wave, calculate the FFT of the sine wave, extract the frequency of the FFT of the sine wave from the FFT data, and know what happens to the time-domain and FFT-domain of this data if the phase of the sine wave were shifted by a few degrees. I tried with the help of the getting started guide in Matlab itself and input:- x=0:pi/100:2*pi y=sin(x) plot(x,y) y=fft(x) And couldn't do any of the others. Would appreciate some help. Thank you.