Symbol in context

$p^{2}$

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

Meanings in context

Article-grounded definition

the square of p; the pitch.

Article-grounded definition

the square of p; the starting from frequency.

n_{\text{area}}(p) \;\propto\; \frac{1}{p^{2}},

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

\rho(p) \;\approx\; \frac{1}{p^{2}}.

This equation gives an approximation: it relates the quantities while allowing an approximation.

1/p^{2}

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

\frac{\partial \phi(p,t)}{\partial t} = \frac{1}{2}\,\frac{\partial^{2}}{\partial p^{2}}\Big[V(p)\,\phi(p,t)\Big], \quad V(p) = \frac{p(1-p)}{2N} \qquad \text{(Kimura, 1955/1962)}

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