A point at which the derivative of a function vanishes,
A stationary point may be a minimum, maximum, or inflection point.
A point at which the derivative of a function vanishes,
A stationary point may be a minimum, maximum, or inflection point.
Weisstein, Eric W. "Stationary Point." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/StationaryPoint.html