Definitions

1. noun

A relation between two quantities, such that the value of one quantity is the reciprocal of the other.

“The inverse of the function f(x) = 1/x is f^(-1)(x) = x.”

2. adjective

Reversed or opposite in order, direction, or effect; reciprocal.

“An inverse image of a painting.”

3. verb

To reverse or undo the effect of something.

“Inverse the function to find the solution.”