\darr
The downward arrow symbol, often used to indicate direction or movement downwards in mathematical expressions or diagrams.
Indicating a downward movement from point A to point B.
A \darr B
Showing that the variable x approaches 0 from above.
x \darr 0
Illustrating a decrease in value from a to b.
\text{If } a > b, \text{ then } a \darr b