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# Linear Algebra (contrib)
[TOC]
Linear algebra libraries for TensorFlow.
## `LinearOperator`
Subclasses of `LinearOperator` provide a access to common methods on a
(batch) matrix, without the need to materialize the matrix. This allows:
* Matrix free computations
* Different operators to take advantage of special structure, while providing a
consistent API to users.
### Base class
* `tf.contrib.linalg.LinearOperator`
### Individual operators
* `tf.contrib.linalg.LinearOperatorDiag`
* `tf.contrib.linalg.LinearOperatorIdentity`
* `tf.contrib.linalg.LinearOperatorScaledIdentity`
* `tf.contrib.linalg.LinearOperatorFullMatrix`
* `tf.contrib.linalg.LinearOperatorLowerTriangular`
* `tf.contrib.linalg.LinearOperatorLowRankUpdate`
### Transformations and Combinations of operators
* `tf.contrib.linalg.LinearOperatorComposition`
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