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efficient-java-matrix-library-discuss
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efficient-java-matrix-library-discuss
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David Hummel
Sep 19
How to apply arithmetic with shifted/rolled indices
Hi - I am new to EJML and am trying to efficiently apply operations on two dense matrices where the
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How to apply arithmetic with shifted/rolled indices
Hi - I am new to EJML and am trying to efficiently apply operations on two dense matrices where the
Sep 19
Alex Green
Sep 13
SimpleOperations_ZDRM basic operations
Hello everyone! I'm operating complex double matrices using EJML. Found out that some simple
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SimpleOperations_ZDRM basic operations
Hello everyone! I'm operating complex double matrices using EJML. Found out that some simple
Sep 13
Peter A
Jul 7
Release 0.41 was just published
Should be on Maven Central now. here's the changelog ----- Version 0.41 2021/07/07 - Build *
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Release 0.41 was just published
Should be on Maven Central now. here's the changelog ----- Version 0.41 2021/07/07 - Build *
Jul 7
Magnus MacHale-Gunnarsson
,
Peter A
3
Jan 13
Problem with svd?
No problem! I've considered adding sanity checks to see if there are NaN on input, but that is
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Problem with svd?
No problem! I've considered adding sanity checks to see if there are NaN on input, but that is
Jan 13
John Bauer
,
Peter A
2
11/3/20
Immutable / unmodifiable SimpleMatrix wrapper
Not on the current plan but if done right there would be no issue adding it. The main problem with an
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Immutable / unmodifiable SimpleMatrix wrapper
Not on the current plan but if done right there would be no issue adding it. The main problem with an
11/3/20
CLOVIS
,
Peter A
4
10/24/20
Translation from NumPy to EJML
Thanks a lot, I'll try to write it with this API :) Honestly it says the low level API is a bit
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Translation from NumPy to EJML
Thanks a lot, I'll try to write it with this API :) Honestly it says the low level API is a bit
10/24/20
Martin Kiechle
,
Peter A
3
12/16/19
multiplying two sparse float matrices
Hi Peter, Thanks for the reply and the support. Really awesome that you made the necessary
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multiplying two sparse float matrices
Hi Peter, Thanks for the reply and the support. Really awesome that you made the necessary
12/16/19
Ben Nguyen
6/18/19
How do I convert a SimpleMatrix object back to a 1D or 2D double array?
Hello, How do I convert a SimpleMatrix object (SimpleBase wrapper of DMatrixRMaj) back to a 1D or 2D
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How do I convert a SimpleMatrix object back to a 1D or 2D double array?
Hello, How do I convert a SimpleMatrix object (SimpleBase wrapper of DMatrixRMaj) back to a 1D or 2D
6/18/19
Peter A
,
Jonny Kravos
2
4/12/19
Re: Equation causes crash in Android
I was able to fix it by including compileOptions { sourceCompatability JavaVersion.VERSION_1_8
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Re: Equation causes crash in Android
I was able to fix it by including compileOptions { sourceCompatability JavaVersion.VERSION_1_8
4/12/19
Matías Roodschild
,
Peter A
3
10/2/18
Froog Neural Network in EJML
I was using the library and I could test it against another, but the main bottleneck are the
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Froog Neural Network in EJML
I was using the library and I could test it against another, but the main bottleneck are the
10/2/18
Peter A
8/24/18
Released v0.35
Lots and lots of small changes. Printing has been revisited and the format of numbers has improved.
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Released v0.35
Lots and lots of small changes. Printing has been revisited and the format of numbers has improved.
8/24/18
Georg Heiler
,
Peter A
2
8/3/18
Vectorization SIMD
Not explicitly. The Java VM will recognize that parts of the code can be vectorized and does just
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Vectorization SIMD
Not explicitly. The Java VM will recognize that parts of the code can be vectorized and does just
8/3/18
Peter A
4/13/18
Released v0.34
Just released a new stable version of EJML. Get it at http://ejml.org Probably the most important
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Released v0.34
Just released a new stable version of EJML. Get it at http://ejml.org Probably the most important
4/13/18
Stephen Kong
,
Peter A
2
3/19/18
ejml 0.33 How to normalize a matrix and find its pivots?
Hi Stephen, 1) Can you clarify what you mean by unit matrix? Unit matrix can have different
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ejml 0.33 How to normalize a matrix and find its pivots?
Hi Stephen, 1) Can you clarify what you mean by unit matrix? Unit matrix can have different
3/19/18
Marco Paolieri
3/7/18
LU decomposition of rectangular matrices
Does EJML support the LU decomposition of rectangular matrices (eg, to solve linear systems with more
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LU decomposition of rectangular matrices
Does EJML support the LU decomposition of rectangular matrices (eg, to solve linear systems with more
3/7/18
Matías Roodschild
,
Peter A
3
3/1/18
java.lang.NegativeArraySizeException
Hi Peter, Thanks for response and yes, you are right, it's a problem in my code, the real
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java.lang.NegativeArraySizeException
Hi Peter, Thanks for response and yes, you are right, it's a problem in my code, the real
3/1/18
Stephen Whiddett
,
Peter A
4
1/4/18
Plus method like Python broadcasting?
sorry for the slow response. Thought I had added support for that but I guess I was thinking of some
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Plus method like Python broadcasting?
sorry for the slow response. Thought I had added support for that but I guess I was thinking of some
1/4/18
Pranas
,
Peter A
2
10/6/17
ddence with each row as cyclical buffer
Hi Pranas, Not sure I understand everything you're asking. However I can describe why there's
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ddence with each row as cyclical buffer
Hi Pranas, Not sure I understand everything you're asking. However I can describe why there's
10/6/17
Peter A
9/18/17
EJML v0.32 is out with Sparse Matrix Solvers
Grab it at http://ejml.org - Peter -- "Now, now my good man, this is no time for making enemies.
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EJML v0.32 is out with Sparse Matrix Solvers
Grab it at http://ejml.org - Peter -- "Now, now my good man, this is no time for making enemies.
9/18/17
Peter A
2
9/5/17
0.31-SNAPSHOT Full 32-bit support and major refactoring
Yep that would be a lot of work, but I'll keep it in the back of my mind. Maybe some simple way
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0.31-SNAPSHOT Full 32-bit support and major refactoring
Yep that would be a lot of work, but I'll keep it in the back of my mind. Maybe some simple way
9/5/17
Peter
2
5/18/17
EJML 0.31 has been released
Forgot to mention that a python script has been provided for updating your code. It should take code
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EJML 0.31 has been released
Forgot to mention that a python script has been provided for updating your code. It should take code
5/18/17
David Hait
,
Peter A
2
3/16/17
Feature Request: Initialize matrix to constant scalar
You can fill it by calling CommonOps.fill(matrix,scalar value); There's a similar function for
unread,
Feature Request: Initialize matrix to constant scalar
You can fill it by calling CommonOps.fill(matrix,scalar value); There's a similar function for
3/16/17
Peter A
1/23/17
latest naming scheme
After some feedback here's the latest naming scheme for the procedural interface. Patterns: <
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latest naming scheme
After some feedback here's the latest naming scheme for the procedural interface. Patterns: <
1/23/17
Peter A
1/3/17
SNAPSHOT has full support for 32-bit floats
Support for 32-bit matrices has been added and is available on GitHub. It's auto generated using
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SNAPSHOT has full support for 32-bit floats
Support for 32-bit matrices has been added and is available on GitHub. It's auto generated using
1/3/17
Russell Butler
,
Peter A
7
12/14/16
10x speed increase after first few multiplications, but first few calls to MatrixMatrixMult.mult_small are slow?
yeah. it is about 2x faster using fixed size matrices, than opengl's multiplymatrix function (on
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10x speed increase after first few multiplications, but first few calls to MatrixMatrixMult.mult_small are slow?
yeah. it is about 2x faster using fixed size matrices, than opengl's multiplymatrix function (on
12/14/16
Walter Whitlock
,
Peter A
3
12/4/16
weighted least squares error
That looks correct. Thanks for sharing! This would probably make for a good example. I'll add it
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weighted least squares error
That looks correct. Thanks for sharing! This would probably make for a good example. I'll add it
12/4/16
Peter A
11/9/16
New Release! Version 0.30
Summary: Bug fixes, including a hidden on in eigenvalue decomposition. Improved support for complex
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New Release! Version 0.30
Summary: Bug fixes, including a hidden on in eigenvalue decomposition. Improved support for complex
11/9/16
Sophia Karra
,
Peter A
2
10/25/16
EJML for Active risk calculations (tracking error)
Not that I'm aware of sorry! Quick google search turned up nothing too. On Tue, Oct 11, 2016 at 6
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EJML for Active risk calculations (tracking error)
Not that I'm aware of sorry! Quick google search turned up nothing too. On Tue, Oct 11, 2016 at 6
10/25/16
Viktar Khamianok
,
Peter A
2
10/25/16
eig for complex matrix
Is the input matrix real? That case is easier to add support for. Now the bad news, support for
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eig for complex matrix
Is the input matrix real? That case is easier to add support for. Now the bad news, support for
10/25/16
Catherine Aspée Hdez
4/18/16
Sort function in Matlab with EJML?
Greetings to everyone! I am trying to translate some matlab code to java using your library. So far
unread,
Sort function in Matlab with EJML?
Greetings to everyone! I am trying to translate some matlab code to java using your library. So far
4/18/16
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