The multiplication function is a mathematical operation that combines two numbers, known as multiplicands, to produce their product. It is denoted by the symbol "×" or "*", and is one of the four basic arithmetic operations, along with addition, subtraction, and division.

In its simplest form, multiplication involves repeatedly adding a number to itself a certain number of times. For example, multiplying 3 by 4 means adding 3 to itself four times, resulting in a product of 12 (3 + 3 + 3 + 3 = 12).Multiplication is commutative, which means that changing the order of the multiplicands does not change the product. For instance, multiplying 3 by 4 yields the same result as multiplying 4 by 3, both resulting in a product of 12.The multiplication function can be extended to include not only whole numbers but also fractions, decimals, and even complex numbers. It follows specific rules and properties, such as the distributive property, which states that the product of a number and a sum equals the sum of the products of the number and each term of the sum.In computer programming, the multiplication function is commonly implemented as a built-in operator or as a function/method provided by the programming language, allowing for the multiplication of numerical values.