Browsing through code that uses ojAlgo it's quite common to see it being used inefficiently or at least not the intended way. Here's an example code line, seen in the…
Any post containing code examples
Almost everything in ojAlgo makes use of or interacts with some array based data structure. To always code directly against raw arrays like double[], float[] or Number[] would be awkward.…
This is an updated version of a post from when artificial neural networks (with ojAlgo) were first introduced. Since then new features have been added, the API changed a bit,…
ojAlgo's MatrixStore interface largely defines what you can do with matrices. There are many implementations of that interface provided. They store the elements differently and exploit structure to perform operations…
v48.3.0 had a pure Neural Network focus: Support for floatPossibility to "get" all individual parameters of the networkNew file format to save trained networks to diskImproved separation between building, training and…
Controlling Concurrency ojAlgo is multithreaded – some operations are automatically divided to run in multiple threads. You don't have to do anything for this to happen. ojAlgo senses what hardware…
Generalised Eigenvalue Problems ojAlgo now has built-in direct support for (some) generalised eigenvalue problems where both A and B are symmetric/hermitian and B is positive definite. Each of these problems can be reduced to a standard…
The diet problem is one of the earliest real-life problems to be solved using linear programming. This example shows how to use ojAlgo to model and solve a (miniature) instance…
This is not an eating competition, instead you have to think. The Challenge Chicken McNuggets can be ordered in the sizes of 6, 9 and 20 pieces. Being allowed to…
ojAlgo v47.1.1 Primarily this release has improvements to the optimisation code:Extensive work on tuning the solvers (primarily the ConvexSolver) Major refactoring of test cases (mainly for LinearSolver and IntegerSolver).The presolve…