Fourier Transform of a Drawn Curve

Notes:

• *Typically, an inverse discrete fourier transform takes in a sequence of complex numbers and returns a sequence of real numbers. To deal with this, this function interprets any drawn function as representing a sequence of magnitudes of complex numbers, and for each item of the sequence, it computes a random complex number of that magnitude; then, with this derived sequence of complex numbers, the inverse discrete fourier transform is computed and displayed.