Quantum Computing, Qiskit, Fourier Transform, Addition.
The N-dimensional matrix is equivalent to the function representing the quantum Fourier transform: If you remain unconvinced, try using both the matrix and the function to calculate the quantum Fourier transform of a simple 1 qubit state, say |ψ> = (1/1.41421)|0> + (1/1.41421)β|1>. The results from