Inductance in an RL Circuit

%% Inductance in an RL Circuit
% Determines the inductance in an RL Circuit

% Inputs and Variables
V = input('What is the voltage in the battery?\n');
Tau = input('What is the time constant?\n');
I = input('What is the maximum current?\n');

% Outputs and Equations
R = V*(1-exp(-t/Tau))/I;
L = R*Tau;
fprintf('The value of inductance is %.4e H', L)