Coefficient

In mathematics, a coefficient is a constant multiplicative factor of a certain object. For example, the coefficient in 9x2 is 9. A coefficient can also be a variable such as ,  and . 

The object can be such things as a variable, a vector, a function, etc. In some cases, the objects and the coefficients are indexed similarly, leading to expressions such as:

where an is the coefficient of the variable xn for each n = 1, 2, 3, …

 Related pages 

 Polynomial

 References 

Category:Algebra