Linearly

There are eight gluons. Six--modulo superposition--are sensible color-anticolor color swappers. The other two are fathomless mixtures that can only be described as the remaining linearly independent elements of the group of three-by-three complex unitary matrices with determinant one.

The dimension of a vector space equals the largest number of its elements that can be linearly independent.

The effect related linearly to the amount of causative agent added.

Furthermore, the multipreconditioned search space is shown to grow only linearly with the number of preconditioners.