| Answer | Crossword Clue |
|---|---|
| extrema | maximum or minimum value of a function in a specified neighborhood |
| extremum | The maximum or minimum value of a function |
| extremum | (Latin) a maximum or minimum of a mathematical function |
| oscillation | repeated fluctuation above and below some mean value, as the pressure of a sound wave or the voltage of an alternating current, or a single such fluctuation between maximum and minimum values |
