The symbol "<" represents the mathematical concept of "less than." It is used to compare two values, indicating that the value on the left side is smaller than the value on the right side. For example, in the expression "3 < 5," it shows that 3 is less than 5. In various fields, such as mathematics and computer science, the "<" symbol is essential for inequalities and comparisons. It helps in solving equations, programming conditions, and analyzing data. Understanding this symbol is fundamental for anyone studying mathematics, statistics, or computer programming.