## 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.

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