noun

1. An inverted state: a state in which something has been turned (properly) upside down or inside out or backwards.

   “321 is the inverse of 123.”

2. The result of an inversion, particularly:

3. A second element which negates a first; in a binary operation, the element for which the binary operation—when applied to both it and an initially given element—yields the operation's identity element, specifically:

Synonyms: additive, compositional, curve, point, multiplicative

verb

1. To compute the bearing and distance between two points.

adjective

1. Opposite in effect, nature or order.

2. Reverse, opposite in order.

3. Inverted; having a position or mode of attachment the reverse of that which is usual.