Definition:Multiplicative inverse

From CS2800 wiki
If [math]x [/math] is a number (e.g. a modular number), then we say [math]y [/math] is a multiplicative inverse of [math]x [/math] if [math]xy = 1 [/math] (or [math]xy = \href{/cs2800/wiki/index.php/Modular_number}{⟦1⟧} [/math] in the case of modular numbers).