function Feb24()

% The act of computing the cube root of V is the act of building
% a cube with volume V.
% Suppose we have an LxLxH box with L^2H = V.
%
% To make the box "more cubical" we replace L with the average
% of the three edges:
% newL = (L+L+H)/3
% and set
% newH = V/L^2.
%
% Thus
% newL = (L + L + V/L^2)/3 = L - (L^3 - V)/(3*L^2)