, 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
- a1x1 + a2x2 + a3x3 + …
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.