Non-decreasing vs Non-increasing (Definition)
16 Sep 2016Non-decreasing Function
A function f(x) is said to be non-decreasing on an interval I if f(b) >= f(a) for all b > a, where a, b \in I.
Non-increasing Function
A function f(x) is said to be non-increasing on an interval I if f(b) <= f(a) for all b > a, where a, b \in I.