%%  IDENTIFICATION
% Name: Autar Kaw, T Pain, George Clooney (Put your names here)
% Title: Brinell Hardness Calculator
% Course Name: Computational Methods
% Course Number: EML3041
% Date of Submission: August 1, 2016
% Semester: Fall 2011 

%% SPECIFICATIONS
% Specifications: Write a Matlab Worksheet 
% where the values of L, D, and d, are written in the beginning of the 
% matlab worksheet and then computes and displays the Brinell Hardness.  

%% INPUTS and DISPLAYING INPUTS
clc
L = -3000;
D = 10;
d = 7.2;
fprintf('\nThe Load Applied in kgf is L=%d',L)
fprintf('\nThe Diameter of the Indented Load in mm is D=%d',D)
fprintf('\nThe Diameter of the Indent in mm is L=%d',d)
if L<0 
    fprintf('\nThe load chosen is negative')
    exit
end

%% CODE
%Calculating the hardness using the formula
HB=L/((pi*D/2)*(D-sqrt(D^2-d^2)));

%% DISPLAYING OUPUTS
fprintf('\nThe Hardness of the Material is HB=%d',HB)