Matlab code for Binomial array antenna

clc;
clear all;
close all hidden ;
f=input('please enter the operating frequency in Hz:\n->');
N=input('please enter the number of elements(N):\n->');
lambda=(3e8)/f%lambda=c/f% the value is in meters
d=input('please enter the distance d in meters between the elemnts:\n->');
k=2*pi/lambda;