LessThan is a mathematical symbol used to compare two values, indicating that one value is smaller than the other. It is represented by the symbol "<". For example, in the expression "3 < 5", it shows that 3 is less than 5. This concept is fundamental in mathematics and is used in various fields, including science and finance. In programming and computer science, LessThan is often used in conditional statements to control the flow of a program. For instance, in a programming language like Python, you might see a statement like "if x < 10", which checks if the variable x is less than 10 before executing a specific block of code.