You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: TestingFRFTCode.m
    path of file: ./repos/2D_3D_PolarFourierTransform/MATLAB CodeBase/NVIDIA_1DFrFT
    
    the code of the file until where you have to start completion: clear all
clc;
close all
%% This script is written purely for debugging purposes 
% We TEST various functions through direct comput
    
function to be used
%  x(3) = 1;
alpha = double(.9569);

 
i=sqrt(-1);                 % initializing incase it hold another value

%% Direct FRFT
y1=zeros(N,1);
for n=-N/2:1:N/2-1,
    for k=0:1:N-1,
        y1(n+1+N/2)=y1(n+1+N/2)+x(k+1)*exp(-i*2*pi*k*n*alpha/N);
    end