U+21D9 "⇙" South West Double Arrow Unicode Character

U+21D9 "⇙" South West Double Arrow is a typographic symbol that represents a double lined arrow pointing diagonally down and to the left, typically used in mathematical notation, diagrams, or technical documentation to indicate a relationship, direction, or a logical flow of information toward the southwest quadrant. It belongs to the Arrows block in Unicode, which includes a variety of arrow symbols for representing movement, mapping, or logical implications, and its design consists of two parallel arrowheads that suggest a stronger or bidirectional conceptual link compared to a single line arrow.