ejml | use linear algebra library written in Java for dense | Math library

by lessthanoptimal Java Version: v0.42 License: No License

X-Ray Key Features Code Snippets Community Discussions(7)Vulnerabilities Install Support

kandi X-RAY | ejml Summary

ejml is a Java library typically used in Utilities, Math applications. ejml has no bugs, it has no vulnerabilities, it has build file available and it has high support. You can download it from GitHub, Maven.

Efficient Java Matrix Library (EJML) is a linear algebra library for manipulating real/complex/dense/sparse matrices. Its design goals are; 1) to be as computationally and memory efficient as possible for both small and large matrices, and 2) to be accessible to both novices and experts. These goals are accomplished by dynamically selecting the best algorithms to use at runtime, clean API, and multiple interfaces. EJML is free, written in 100% Java and has been released under an Apache v2.0 license.

Support

Quality

Security

License

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Support

ejml has a highly active ecosystem.

It has 493 star(s) with 110 fork(s). There are 29 watchers for this library.

It had no major release in the last 12 months.

There are 19 open issues and 82 have been closed. On average issues are closed in 306 days. There are 4 open pull requests and 0 closed requests.

It has a positive sentiment in the developer community.

The latest version of ejml is v0.42

Quality

ejml has 0 bugs and 0 code smells.

Security

ejml has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

ejml code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

ejml does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

ejml releases are available to install and integrate.

Deployable package is available in Maven.

Build file is available. You can build the component from source.

Installation instructions are not available. Examples and code snippets are available.

It has 81337 lines of code, 6678 functions and 786 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed ejml and discovered the below as its top functions. This is intended to give you an instant insight into ejml implemented functionality, and help decide if they suit your requirements.

Decomposes the matrix
Specifies the expected max size
Performs common initialization
Set the elements from a double array
Sets this to a value
Sets this matrix to equal to the original matrix
Transposes a matrix
Transforms a matrix
Add builtin functions
Extract a scalar
Main entry point
Returns the absolute value of the matrix
Main test routine
Test program
Computes the lower Cholesky decomposition of a matrix
Inverts a matrix to a matrix
Compares the two matrices
Performs the multiplication of two matrices
Performs a decomposition on the lower triangular matrix
Computes the eigenvalue of the eigenvector
Multiply two matrices
Computes the multiplication of two matrices
Computes the product of two matrices
Solve for X
Returns the minimum absolute value of the matrix
Uolesky decomposition of A

Get all kandi verified functions for this library.

ejml Key Features

No Key Features are available at this moment for ejml.

ejml Examples and Code Snippets

No Code Snippets are available at this moment for ejml.

Community Discussions

Trending Discussions on ejml

Problems running gradlew.bat and setting up Development Environment

How can I find the stop and start index for a Java vector?

Solr java.lang.ClassNotFoundException: net.minidev.json.writer.JsonReaderI when executing DataImportHandler

ClassNotFoundException: edu.stanford.nlp.tagger.maxent.ExtractorNonAlphanumeric

Issues trying to mod minecraft 1.12.2 with forge. Cannot wrap and test build

Class conflict on different dependencies

Failed to apply plugin: Found java version 11 Minimum required is 1.8. Versions 11.0.0 and newer are not supported yet

QUESTION

Problems running gradlew.bat and setting up Development Environment

Asked 2020-Dec-11 at 03:43

I've recently gotten into modding Minecraft 1.7.10, and I'm setting up my folders/environment. All I've done so far is as follows;

Extracted the 1.7.10 src files from the forge website to the file I plan on modding in.
made a system variable in my environmental variables called Path, which directs to my JDK.
Ran gradlew.bat (failed)

And this is where I failed. I have the main error I got straight from the cmd prompt, used cmd /k switch to keep it open listed below.

FAILURE: Build failed with an exception.

What went wrong: A problem occurred configuring root project 'Modding Project'.

Could not resolve all dependencies for configuration ':classpath'. Could not resolve org.eclipse.equinox:common:[3.2.0,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:jobs:3.5.300-v20130429-1813 :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:contenttype:3.4.200-v20130326-1255 :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.equinox:preferences:3.5.100-v20130422-1538 > Failed to list versions for org.eclipse.equinox:common. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/common/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/common/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.equinox:preferences:[3.2.0,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:contenttype:3.4.200-v20130326-1255 > Failed to list versions for org.eclipse.equinox:preferences. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/preferences/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/preferences/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.equinox:registry:[3.2.0,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:contenttype:3.4.200-v20130326-1255 > Failed to list versions for org.eclipse.equinox:registry. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/registry/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/registry/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.core.runtime:compatibility:[3.1.0,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:resources:3.2.1-R32x_v20060914 > Failed to list versions for org.eclipse.core.runtime:compatibility. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/core/runtime/compatibility/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/core/runtime/compatibility/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.core:expressions:[3.1.0,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:resources:3.2.1-R32x_v20060914 > Failed to list versions for org.eclipse.core:expressions. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/core/expressions/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/core/expressions/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.core:filesystem:[1.0.0,2.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:resources:3.2.1-R32x_v20060914 > Failed to list versions for org.eclipse.core:filesystem. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/core/filesystem/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/core/filesystem/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse:osgi:[3.7.0,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255 > Failed to list versions for org.eclipse:osgi. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/osgi/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/osgi/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.equinox:common:[3.6.100,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255 > Failed to list versions for org.eclipse.equinox:common. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/common/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/common/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.core:jobs:[3.2.0,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255 > Failed to list versions for org.eclipse.core:jobs. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/core/jobs/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/core/jobs/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.equinox:registry:[3.4.0,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255 > Failed to list versions for org.eclipse.equinox:registry. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/registry/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/registry/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.equinox:preferences:[3.4.0,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255 > Failed to list versions for org.eclipse.equinox:preferences. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/preferences/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/preferences/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.core:contenttype:[3.3.0,4.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255 > Failed to list versions for org.eclipse.core:contenttype. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/core/contenttype/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/core/contenttype/maven-metadata.xml'. Received status code 501 from server: HTTPS Required Could not resolve org.eclipse.equinox:app:[1.0.0,2.0.0). Required by: :Modding Project:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255 > Failed to list versions for org.eclipse.equinox:app. > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/app/maven-metadata.xml. > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/app/maven-metadata.xml'. Received status code 501 from server: HTTPS Required

Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 10.107 secs

I can provide the --stacktrace, --info or the --debug on request.. first post so I'm not sure what people need beyond the error. Thanks anyways!

Here is my build.gradle

...

ANSWER

Answered 2020-Dec-11 at 03:30

So as far as I understood repo1.maven.org/maven2 does not support http anymore. That is problem because 1.7.10 is shipped with gradle wrapper v2.0. In this version http was hardcoded. So you need to add repository by yourself.

Repository declaration looks like:

Source https://stackoverflow.com/questions/65244986

QUESTION

How can I find the stop and start index for a Java vector?

Asked 2020-May-12 at 02:03

I have a vector that looks like this:

...

ANSWER

Answered 2020-May-08 at 15:25

I think there is a name for this, but I can't remember what it might be, but you start looking for the next boundary with an accelerating search, and use a binary search after that.

You know the numbers are in ascending order, and there are potentially a lot of the same number, so you start by checking the next element. But instead of keep going 1 step at a time, you accelerate and step 2, 4, 8, 16, ... until you find a higher number.

Once you've found a higher number, you've gone too far, but the last step had the initial number, so you know the boundary is somewhere between the last two steps, and you then apply a binary search for the boundary.

Once you've fund the boundary, you start over stepping 1, 2, 4, ... for the next boundary.

If you expect most numbers to have about the same number of occurrences, you could keep a running average count, and make the first step with that average, to get a running start.

I'll leave it to you to actually code this.

Source https://stackoverflow.com/questions/61682003

QUESTION

Solr java.lang.ClassNotFoundException: net.minidev.json.writer.JsonReaderI when executing DataImportHandler

Asked 2020-Mar-16 at 09:25

I am currently working on a custom DataImportHandler for Solr 8.4.1.

I wrote my own entity processor class where I used the json-path library. And even though the solr-dataimporthandler (which I have to import in my custom class) seems to already have a json-path dependency on itself, I wanted to go the safe way and compiled all necessary classes into the OparlEntityProccessor.jar.

However, when I execute the dataimporter via the web interface, I get this Error:

...

ANSWER

Answered 2020-Mar-16 at 09:25

Solved it!

I deleted the json-path-2.4.0.jar from ...\solr-8.4.1\server\solr-webapp\webapp\WEB-INF\lib. That way solr has no other option than searching for the missing classes in my jar.. i guess ? I still don't really know what's going on there, but it works so...

Source https://stackoverflow.com/questions/60696899

QUESTION

ClassNotFoundException: edu.stanford.nlp.tagger.maxent.ExtractorNonAlphanumeric

Asked 2020-Feb-28 at 09:06

I try to compile and run a Stanford NLP java example on this page: https://stanfordnlp.github.io/CoreNLP/api.html#quickstart-with-convenience-wrappers (the first example BasicPipelineExample)

It is said there that the example is developed for 3.9.0 but I could not get that anywhere, so I'm using 3.9.2.

I run the code under simple scala build tool because the further work will be written in scala.

My build.sbt is here:

...

ANSWER

Answered 2020-Feb-28 at 09:06

I faced the same problem, just figured it out finally. The models with links on the main repo page at: https://github.com/stanfordnlp/CoreNLP, e.g., this one: http://nlp.stanford.edu/software/stanford-corenlp-models-current.jar, and the neighboring links are matched with the latest current code (i.e., the HEAD of the Git repo), and not any specific release like 3.9.2.

To get the models for the 3.9.2 version, you have to get it from the corresponding models.jar:

Source https://stackoverflow.com/questions/60360209

QUESTION

Issues trying to mod minecraft 1.12.2 with forge. Cannot wrap and test build

Asked 2020-Feb-22 at 22:04

I cannot get a test build to run at all from eclipse. I am running on windows 10 with java openjdk version "1.8.0_242"

I've followed various tutorials step-by-step, but keep getting this error. I've also tried running a fresh build that I haven't edited at all and it seems to crash with the same issue.

Latest crash log.

...

ANSWER

Answered 2020-Feb-22 at 22:04

This looks like a certain compatibility issue with Java 8u242 that hasn't yet been resolved. For now, the best workaround is to downgrade to Java 8u232.

Source https://stackoverflow.com/questions/60346062

QUESTION

Class conflict on different dependencies

Asked 2020-Feb-18 at 08:24

I have the same class on 2 dependencies on my project. The libraries unit-api-1.0 (which is a dependency of org.geotools) and jscience-4.3.1 both have the class javax.measure.quantity.Length.

...

ANSWER

Answered 2020-Feb-18 at 08:24

The GeoTools upgrade FAQ covers the changes needed to use Units after version 20.0.

You need the following dependency:

Source https://stackoverflow.com/questions/60264592

QUESTION

Failed to apply plugin: Found java version 11 Minimum required is 1.8. Versions 11.0.0 and newer are not supported yet

Asked 2020-Jan-29 at 14:37

I'm trying to build the Minecraft Forge MDK using IntelliJ 2017.3.4 on MacOS 10.14.6. When I do gradlew build I get the following error:

Failed to apply plugin [id 'net.minecraftforge.gradle'] Found java version 11.0.4. Minimum required is 1.8.0_101. Versions 11.0.0 and newer are not supported yet.`

However, I don't even have Java 11 installed. The project structure is set to 1.8:

I switched the IDE boot jdk to 1.8 as well:

And in Other Settings --> Default project structure I also have it set to Java 8:

Nevertheless, gradle thinks I'm trying to use Java 11. How on earth do I get it to recognize that I am using Java 8?

Here is my build.gradle file:

...

ANSWER

Answered 2020-Jan-29 at 14:37

You say:

However, I don't even have Java 11 installed.

The error message says: "Found java version 11.0.4."

That means that you do have Java 11 installed. You might not have installed it yourself, or you might have tried to uninstall it. But it is definitely there. Gradle has found the Java 11 installation, and its java command has reported its version number as 11.0.4.

Looking at the gradlew script, it is using two methods to decide which Java installation to use:

If the JAVA_HOME environment variable is set, the script looks for the java executable in the installation that the variable points at.
If the JAVA_HOME environment variable is not set, it uses the java command on the command search path; i.e. according to what the PATH environment variable specifies.

So, check what these two environment variables say ... in the shell where you were running the gradle command. I would recommend setting JAVA_HOME. It needs to point to your Java 8 installation directory.

(You can reverse engineer the correct JAVA_HOME setting from path to your Java 8 java command and what the gradlew script is doing.)

Note that multiple installations of Java will happily coexist on a Mac. You just need to make sure that your PATH and/or JAVA_HOME variables point at the right place ... for the version you are currently using / wanting to use.

Source https://stackoverflow.com/questions/59968267

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install ejml

You can download it from GitHub, Maven.
You can use ejml like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the ejml component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .