PyPI · #4690 most downloaded on PyPI

linear-operator

0.6.1721K downloads/mocornellius-gp/linear_operator ↗New releases in your daily digest, changelog included.

A linear operator implementation, primarily designed for finite-dimensional positive definite operators (i.e. kernel matrices).

Last release 7 months ago
27 Feb 2026
Release timing varies
gaps range from 3 weeks to 13 months
Nearly every release is documented
notes for 10 of 11 stable releases
Nothing withdrawn
no release was ever pulled
4 years old
11 releases · first in 2022

Release timeline

11 releases since 2022

202220232024

Releases

0.6.127 Feb 2026Deprecated
Update deprecated sparse tensor construction by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/110
What's Changed

Update deprecated sparse tensor construction by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/110

Remove version pins for mpmath and typeguard by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/112

Adding _noop_index for the block dimension in block_linear_operator.py by @lpapenme in https://github.com/cornellius-gp/linear_operator/pull/115

Convert base_linear_op to a dense linear operator in BlockDiagLinearOperator by @kayween in https://github.com/cornellius-gp/linear_operator/pull/119

Remove jaxtyping dependency by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/121

Speed up MatmulLinearOperator.to_dense() for DiagLazyTensors by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/122

Upgrade to use py3.10 features by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/123

Make linear operators pickleable by @kayween in https://github.com/cornellius-gp/linear_operator/pull/124

New Contributors

@lpapenme made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/115

@kayween made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/119

Full Changelog: https://github.com/cornellius-gp/linear_operator/compare/v0.6...v0.6.1
Open source →

LinearOperator now requires

Python >= 3.10
Pytorch >= 2.0

What's Changed

Corrected configuration of exclude statements in pre-commit configuration by @JonathanWenger in https://github.com/cornellius-gp/linear_operator/pull/104
Unpin jaxtyping by @saitcakmak in https://github.com/cornellius-gp/linear_operator/pull/105
Fix docs build by @saitcakmak in https://github.com/cornellius-gp/linear_operator/pull/109
Version bump by @gpleiss in https://github.com/cornellius-gp/linear_operator/pull/108

New Contributors

@JonathanWenger made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/104

Full Changelog: https://github.com/cornellius-gp/linear_operator/compare/v0.5.3...v0.6

Open source →

0.5.315 Aug 2024

Fix issue with negative indexing in CatLinearOperator by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/80

What's Changed

Fix issue with negative indexing in CatLinearOperator by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/80
Use absolute imports by @saitcakmak in https://github.com/cornellius-gp/linear_operator/pull/85
Suppress linter warnings on import from non-existent file by @saitcakmak in https://github.com/cornellius-gp/linear_operator/pull/86
Make pytorch a conda runtime dependency by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/88
Pin mpmath to <=1.3.0 by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/94
linear_operator cat_rows performance improvement by @naefjo in https://github.com/cornellius-gp/linear_operator/pull/93
Fix errors in docs by @gpleiss in https://github.com/cornellius-gp/linear_operator/pull/96
Typeguard 4.3.0 by @ChristianWirthContinental in https://github.com/cornellius-gp/linear_operator/pull/97
Unify tolerance specification for test_diagonalization() by @Turakar in https://github.com/cornellius-gp/linear_operator/pull/91
Fix dtype/device mismatch in _get_indices() by @Turakar in https://github.com/cornellius-gp/linear_operator/pull/90

New Contributors

@naefjo made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/93
@ChristianWirthContinental made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/97

Full Changelog: https://github.com/cornellius-gp/linear_operator/compare/v0.5.2...v0.5.3

Open source →

0.5.225 Aug 2023

Fix type error when converting interpolated_linear_operator to double precision by @CY-Zhang in https://github.com/cornellius-gp/linear_operator/pull/

What's Changed

Fix type error when converting interpolated_linear_operator to double precision by @CY-Zhang in https://github.com/cornellius-gp/linear_operator/pull/74
Update RTD configuration. by @gpleiss in https://github.com/cornellius-gp/linear_operator/pull/75

New Contributors

@CY-Zhang made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/74

Full Changelog: https://github.com/cornellius-gp/linear_operator/compare/v0.5.1...v0.5.2

Open source →

0.5.11 Aug 2023

Fix type of KroneckerProductLinearOperator.linear_ops (in some cases) by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/66

What's Changed

Fix type of KroneckerProductLinearOperator.linear_ops (in some cases) by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/66
Add MaskedLinearOperator by @Turakar in https://github.com/cornellius-gp/linear_operator/pull/69
Fix normalization of initial guess in linear_cg() by @Turakar in https://github.com/cornellius-gp/linear_operator/pull/71
Add short path for LinearOperator.repeat() by @Turakar in https://github.com/cornellius-gp/linear_operator/pull/70
Fix _t_matmul() in MaskedLinearOperator and add test by @Turakar in https://github.com/cornellius-gp/linear_operator/pull/72

New Contributors

@Turakar made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/69

Full Changelog: https://github.com/cornellius-gp/linear_operator/compare/v0.5.0...v0.5.1

Open source →

0.5.02 Jun 2023Deprecated

Clean up deprecation warnings by @saitcakmak in https://github.com/cornellius-gp/linear_operator/pull/63

What's Changed

Add stricter type checking and expected matrix sizes by @corwinjoy in https://github.com/cornellius-gp/linear_operator/pull/42
Re-remove @cached decorator for TriangularLinearOperator.to_dense by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/59
Make jaxtyping dep install requirement by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/60
Fix an issue for DiagLinearOperator if its _diag is a scalar tensor by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/61
Clean up deprecation warnings by @saitcakmak in https://github.com/cornellius-gp/linear_operator/pull/63
Catch some warnings in linear_cg tests by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/64
Add KernelLinearOperator, deprecate KeOpsLinearOperator by @gpleiss in https://github.com/cornellius-gp/linear_operator/pull/62

New Contributors

@corwinjoy made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/42

Full Changelog: https://github.com/cornellius-gp/linear_operator/compare/v0.4.0...v0.5.0

Open source →

0.4.014 Apr 2023Deprecated

Use raw strings to avoid "DeprecationWarning: invalid escape sequence" by @saitcakmak in https://github.com/cornellius-gp/linear_operator/pull/52

What's Changed

Allow .to() to operate on tensors by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/45
Change _dtype_value_context init args to *_value. by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/47
Fix missing dtype arg in _dtype_value_context by @saitcakmak in https://github.com/cornellius-gp/linear_operator/pull/49
Use raw strings to avoid "DeprecationWarning: invalid escape sequence" by @saitcakmak in https://github.com/cornellius-gp/linear_operator/pull/52
Remove @cached decorator for TriangularLinearOperator.to_dense by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/51
Format using ufmt, upgrade pre-commit config by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/56

New Contributors

@saitcakmak made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/49

Full Changelog: https://github.com/cornellius-gp/linear_operator/compare/V0.3.0...v0.4.0

Open source →

0.2.08 Nov 2022

Add basic example notebook by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/17

What's Changed

Documentation

Add basic example notebook by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/17

New torch api compatibility

Register torch.linalg.solve_triangular with LinearOperator by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/29
Register torch.isclose by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/31
Introduce reshape by @Balandat in https://github.com/cornellius-gp/linear_operator/pull/32

Performance

Performant Scaling of BlockDiagLinearOperator by DiagLinearOperator by @SebastianAment in https://github.com/cornellius-gp/linear_operator/pull/14
Edits to generic add, BlockDiagLinearOperator's matmul, and documentation by @SebastianAment in https://github.com/cornellius-gp/linear_operator/pull/10

Bug Fixes

Fix linear operator mul torch.Tensor by @dannyfriar in https://github.com/cornellius-gp/linear_operator/pull/35
Update LO.getitem to handle broadcasted tensor indices. by @gpleiss in https://github.com/cornellius-gp/linear_operator/pull/26
adding unsqueeze to initial_guess in linear_cg when appropriate by @tvercaut in https://github.com/cornellius-gp/linear_operator/pull/22
Removing deepcopy in add because of downstream failure in BoTorch by @SebastianAment in https://github.com/cornellius-gp/linear_operator/pull/12
Patches for ConstantDiagLinearOperator._mul_constant and ConstantMulLinearOperator._getitem. by @j-wilson in https://github.com/cornellius-gp/linear_operator/pull/37

New Contributors

@wbeardall made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/9
@tvercaut made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/22
@karstenBehrendt made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/36
@dannyfriar made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/35
@j-wilson made their first contribution in https://github.com/cornellius-gp/linear_operator/pull/37

Full Changelog: https://github.com/cornellius-gp/linear_operator/compare/v0.1.1...v0.2.0

Open source →

0.1.011 Aug 2022

This repo is in charge of what was previously known as LazyTensor in GPyTorch. It is currently a package that is predominantly used within GPyTorch, a

Welcome to LinearOperator!

This repo is in charge of what was previously known as LazyTensor in GPyTorch. It is currently a package that is predominantly used within GPyTorch, and assumes that the LinearOperators will be PSD kernel matrices. In the future, the goal is to make this a more generic implementation of LinearOperators that can be used in any number of applications.

What's new

For now, this implementation is very similar to what is currently in GPyTorch (v1.8.1). The only major difference is that *LazyTensor has been renamed to *LinearOperator.

Open source →