function ffttransformT=2*pi;E=2;t1=-T/2:0.001:T/2;t2=0:0.001:T;y1=2*E/T*t1;y1f=abs(fft(y1));y2=-E/T*t2+E;y2f=abs(fft(y2));y3=E*sin(t2);y3f=abs(fft(y3));y4=E*sin(t1);y4f=abs(fft(y4));subplot(421)plot(t1,y1)subplot(423)plot(t2,y2)subplot(425)plot(t2,y3)subplot(427)plot(t1,y4)subplot(422)plot(y1f...
