DEMO 1 - Slide the mouse over the gray rectangles to see what happens to the Fourier Transform of the truncated sinusoid as TR goes to infinity and the truncated sinusoid becomes a full sinusoid.
DEMO 2 - Slide the mouse over the gray rectangles to see the Spectral Plot and Fourier Transform of the signal x(t) equal to a finite sum of sinusoids.
DEMO 3 - Slide the mouse over the gray rectangles to see the Spectral Plot and Fourier Transform of the periodic pulse train x(t).
DEMO 4 - Slide the mouse over the gray rectangles to see what happens to the Fourier Transform of the unit pulse train as it morphs into an impulse train.
