Symbol in context

$S_0$

This entry links every published equation using this exact notation. Its meaning may change between equations.

Meanings in context

Article-grounded definition

the same benchmark’s accuracy at a short reference length.

E_b=\frac{G_N}{r_0^3} =\frac{\pi}{r_0S_0}

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

S_0

the same benchmark’s accuracy at a short reference length.

L_{\mathrm{eff}}(\tau) = \max\left\{\, n \le W \ :\ S(n) \ge \tau \cdot S_0 \,\right\}

This equation states a bound: one expression must stay on the indicated side of the other under the article’s assumptions.