Two Parallel Wires

%% Two Parallel Wires
% Determines the magnetic field from two parallel wires from two different
%    spots.

% Constants
muNaught = (4*pi)*10^-7 ;                %[T*m/A] Vacuum Permeability
B = muNaught/(2*pi);

% Inputs and Variables
I = input('Input the currents in brackets\n');
dQ = input('Input the distance from the currents to the point between them in brackets\n');
dP = input('Input the distance from the currents to the point outside the wires in brackets\n ');

% Outputs and Equations
bq1 = B*I(1)/dQ(1);
bq2 = B*I(2)/dQ(2);
bp1 = B*I(1)/dP(1);
bp2 = B*I(2)/dP(2);
Q = bq1-bq2;
P = bp1+bp2;
fprintf('The magnetic field at the point between and outside the two wires are %.4e T and %.4e T', Q,P)

%{
'B' really isn't a constant but just a multiplying factor used many times
    and I was just too lazy to type it out.
When the user is asked to input the distance from the parallel wires it
    should be as follows: [distance from wire 1 to the middle point, distance
    from wire 2 to the middle point]. The order of the distances should
    match the order of the currents in the input from the line above.
Under the assumption where Q is between the wires and P is somewhere to the
    outside of one of thee wires. The code might be fallible whether or not
    the sign of the values are right based on the direction of the long
    wires. This particular code runs where the two parallel wire run in the
    same direction
Very similar to the Long Wire script but this deals with parallel wires
    going alongside the page where the other script deals with the wire going
    in or out of the page.
To calculate the magnetic field at 'Q' the magnetic fields from the two
    wires, they must be subtracted because the forces are in opposite
    directions. On the other hand to calculate 'P' the magnetic fields must
    be added because they are in the same direction.
%}