Solution (source code)

= Solution

Taking the <derivative> of the force-dependent energy gives
$$
\boxed{
\frac{d\mathcal E}{dF}
=\frac{FL^3}{3A}
=h
}.
$$
\b[Thus the <derivative> of the additional minimized internal energy with respect to the applied <force> equals the resulting endpoint <displacement>. This is the <endpoint force derivative of clamped-free beam energy>.]