% C. Talarico
% wheat.m

clear all; close all; clc;

% Wheatstone bridge equations:

% Approach #1

% 5*it    = 1
% 12.5*ib = 1

%    OR

% 5*it + 0*ib    = 1
% 0*it + 12.5*ib = 1

% Ax = b

A = [5 0; 0 12.5]
b = [1; 1]

x = A\b

x = inv(A)*b

% Appproach #2

syms it ib;

sol = solve(5*it == 1, 12.5*ib == 1) % Carefuk: solutions in order ib, it

SOL = [sol.it sol.ib]

it = vpa(SOL(1))
ib = vpa(SOL(2))