A diagonal arrow pointing northeast, commonly used to indicate increasing functions or upward trends in analysis and graphing.
Examples
Indicating increasing function or trend
f(x) \nearrow \text{ as } x \to \infty
Direction in grid or coordinate system
P_{i,j} \nearrow P_{i+1,j+1}
Game theory strategy diagram
(a,b) \nearrow (a+1,b+1)