![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/LimSup.svg/640px-LimSup.svg.png&w=640&q=50)
Oscillation (mathematics)
Amount of variation between extrema / From Wikipedia, the free encyclopedia
In mathematics, the oscillation of a function or a sequence is a number that quantifies how much that sequence or function varies between its extreme values as it approaches infinity or a point. As is the case with limits, there are several definitions that put the intuitive concept into a form suitable for a mathematical treatment: oscillation of a sequence of real numbers, oscillation of a real-valued function at a point, and oscillation of a function on an interval (or open set).
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/LimSup.svg/640px-LimSup.svg.png)