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Questions tagged [matrix]

The tag has no usage guidance.

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0answers
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Calculation of Eigenvalues

I hope this is an easy question: can you recommend an online calculator of Eigenvalues accepting variable coefficients of the matrix? I am not able up to now to find one... I would also consider an ...
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1answer
240 views

Sparse matrix library for Java

I am looking for a sparse matrix library in Java that can do multiplications on sparse integer matrices, where the matrices represent the adjacency relations of a graph. The requirement is roughly the ...
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0answers
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Fastest Eigenvalue Approximation Library for Large Noisy Matrices

What language/library combination benchmarks quickest when computing approximations within a 5% tolerance to the Eigenvalues and Eigenvectors of large matrices: The matrices are not sparse. They have ~...
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0answers
31 views

extended precision sparse matrix solver

I am looking for a sparse matrix direct solver using extended precision (128-bit floating point). Is anyone aware of a package (SuperLU, UMFPACK, etc.) that supports extended precision?
1
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1answer
183 views

quad precision blas/lapack

What is the best blas/lapack library for quad precision (128 bit floating point)? I supposes that the reference fortran versions can be compiled as quad precision? This library would need to be ...
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0answers
248 views

Fast matrix operation library for Android App

I am working on an android app which needs to do some quick matrix operations (inverse transpose matrix multiplications etc) As I understand there are already many fast libraries for doing such ...
2
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0answers
89 views

Component Dependency Matrix for JavaScript

To get an overview of the complexity of my JavaScript application I want to get something like a Dependency Structure Matrix. I found a tool for Java code (junkdog/ecs-matrix) but not for JavaScript ...
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0answers
24 views

C++ matrix library with skip elements, skip rows and median operations

I'm looking for a C++ matrix (array) library, which can: Create a new matrix using only every Nth row of source matrix. Create a new matrix using only every Nth element of source matrix. Compute ...
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0answers
613 views

Library for computing pseudo-inverse of sparse matrix (C++)?

I have a very big matrix (hundreds of milions of entries) that holds a little number of values, and lots of zeros; that's why I thought to use a sparse matrix. There are plenty of libraries that save ...
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Platform independent library for graphics-related matrix calculations in C#

For a platform independent C# phone application (built using Xamarin), I am searching for a small matrix library which supports 3D graphics related operations. Required operations are: ...
2
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0answers
43 views

Looking for (for the lack of a better word) Matrix Databases

Is there a database engine where I can store matrices (like in math) and then perform operations. So these would be large matrices sometimes sparse other times not. I would basically like to perform ...
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2answers
134 views

What efficient matrix implementations are there for Java

From time to time I need a library which can perform matrix multiplication for me. I think I have most recently used EJML, but that isn't necessarily the easiest package to use when I am working with ...