Coefficient
In
mathematics, a
coefficient is a
multiplicative factor that belongs to a certain object such as a
variable, a
basis vector, a
basis function and so on.
Usually, the objects and the coefficients are indexed in the same way, leading to expressions such as
- a_{1}x_{1} + a_{2}x_{2} + a_{3}x_{3} + …
An important coefficient in mathematics is the
binomial coefficient.
Another meaning of
coefficient is that of an important number that characterizes some property of a technical or scientific object.