Coefficient

Template:Otheruses Template:EnWiktionary 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 $a$, $b$ and $c$.

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:

$a_1{x}_1+a_2{x}_2+a_3{x}_3+\cdots$

where a_n is the coefficient of the variable x_n for each n = 1, 2, 3, …

Related pages

• Polynomial