Symbol in context

$P_2$

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

Used in 3 equations

\hat{f} = \frac{\sum_{i} (P_2(i) - P_1(i))\,(P_4(i) - P_1(i))}{\sum_{i} (P_3(i) - P_1(i))\,(P_4(i) - P_1(i))}

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

P_2

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

P_2

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