Relativistic Electric

%% Relativistic Electric
% Determines how many times the kinetic energy of the electron is larger
% than the rest of its energy,the KE of the electron, the speed of the
% electron in terms of the speed of light, and the momentum of the electron
% measure in MeV/c

format long

% Constants
M0c2 = 0.511;                     % [MeV] Rest energy of electron
c = 3.00*10^8;                    % [m/s] Speed of Light

% Inputs and Variables
E = input('Times total energy to rest energy\n');

% Outputs and Equations
K = E-1;
KE =  K*M0c2;
Beta = sqrt(E^2-1)/E;
p = E*M0c2;
fprintf(['Kinetic energy is %.0fx rest energy\n'...
         'Kinetic energy: %.3e MeV\n'...
         'Speed of electrons %.9f\n'...
         'Momentum in MeV/c: %.3e\n'],K,KE,Beta,p)