product
The plot is a number of different concepts in mathematics. In arithmetic, the result of multiplying two or more numbers is called their product or product. When the multiplied number is a real number or a plural number, the order of multiplication has no effect on the product, which is called exchangeability. When the multiplication is a quaternion or a matrix, or an element in some algebraic structure, the order will affect the product as a result. This shows that the multiplication of these objects is not commutative. When multiplied by more than two objects, often with the multiplication Π (uppercase π) that. As with the addition of multiple objects using Σ as a symbol. Generally agreed that the multiplication of the object is only one time, the product is the object itself; no multiplication of the object can also be agreed so that the "empty product" to 1. ...