# Uses of Class
org.apache.commons.math3.linear.AbstractRealMatrix

Packages that use AbstractRealMatrix
Package
Description
org.apache.commons.math3.linear
Linear algebra support.

## Uses of AbstractRealMatrix in org.apache.commons.math3.linear

Subclasses of AbstractRealMatrix in org.apache.commons.math3.linear
Modifier and Type
Class
Description
`class`
`Array2DRowRealMatrix`
Implementation of `RealMatrix` using a `double[][]` array to store entries.
`class`
`BlockRealMatrix`
Cache-friendly implementation of RealMatrix using a flat arrays to store square blocks of the matrix.
`class`
`DiagonalMatrix`
Implementation of a diagonal matrix.
`class`
`OpenMapRealMatrix`
Sparse matrix implementation based on an open addressed map.