WLC: F(x=0) = 0 and dF/dx|_{x=0} = 3·k_B·T/(2·L·L_p) (Hookean entropic-elasticity)

Sympy-exact symbolic witness of the two physically meaningful low-extension anchors of the Marko-Siggia WLC force law. Setup: F(x) = (k_B·T/L_p) · [1/(4(1-x/L)²) - 1/4 + x/L] as a sympy expression with x, L, L_p, k_B, T all positive…