@Siyab Khan: what is the purpose of these lines at the very start of your function?:
clc;
clear all;
close all
format long
Given that your function has no input arguments then its workspace is totally empty anyway, so clear all does nothing at all (except brutally clear all compiled functions from MATLAB's memory, which just slows down your code without any benefit when they get recompiled).
The format only needs to be set once: unless you are changing the format inside other functions or scripts that you are calling, then you might as well just call this once by hand and it will remain unchanged for that MATLAB session.
