## Uses of Class
cern.colt.matrix.impl.AbstractMatrix2D

Packages that use AbstractMatrix2D
Package | Description
--- | ---
cern.colt.matrix | Matrix interfaces and factories; efficient and flexible dense and sparse 1, 2, 3 and d-dimensional matrices holding objects or primitive data types such as `int`, `double`, etc; Templated, fixed sized (not dynamically resizable); Also known as multi-dimensional arrays or Data Cubes.
cern.colt.matrix.impl | Matrix implementations; You normally need not look at this package, because all concrete classes implement the abstract interfaces of `cern.colt.matrix`, without subsetting or supersetting.

### Uses of AbstractMatrix2D in cern.colt.matrix

Subclasses of AbstractMatrix2D in cern.colt.matrix
Modifier and Type | Class and Description
--- | ---
`class` | `DoubleMatrix2D` Abstract base class for 2-d matrices holding `double` elements.
`class` | `ObjectMatrix2D` Abstract base class for 2-d matrices holding `Object` elements.

### Uses of AbstractMatrix2D in cern.colt.matrix.impl

Subclasses of AbstractMatrix2D in cern.colt.matrix.impl
Modifier and Type | Class and Description
--- | ---
`class` | `DenseDoubleMatrix2D` Dense 2-d matrix holding `double` elements.
`class` | `DenseObjectMatrix2D` Dense 2-d matrix holding `Object` elements.
`class` | `RCDoubleMatrix2D` Sparse row-compressed 2-d matrix holding `double` elements.
`class` | `SparseDoubleMatrix2D` Sparse hashed 2-d matrix holding `double` elements.
`class` | `SparseObjectMatrix2D` Sparse hashed 2-d matrix holding `Object` elements.

Methods in cern.colt.matrix.impl with parameters of type AbstractMatrix2D
Modifier and Type | Method and Description
--- | ---
`void` | AbstractMatrix2D.`checkShape(AbstractMatrix2D B)` Sanity check for operations requiring two matrices with the same number of columns and rows.
`void` | AbstractMatrix2D.`checkShape(AbstractMatrix2D B, AbstractMatrix2D C)` Sanity check for operations requiring matrices with the same number of columns and rows.
`static java.lang.String` | AbstractFormatter.`shape(AbstractMatrix2D matrix)` Returns a short string representation describing the shape of the matrix.