Difference between revisions of "Change Log"

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(Created page with "== Version 0.27 == Data: 2015/04/01 * Added SimpleMatrix.randomNormal() for drawing numbers from a normal distribution with zero mean * Added EjmlUnitTests.assertEquals() an...")
 
 
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== Version 0.27 ==
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== Version 0.31 ==
  
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Data: 2015/04/01
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2017/05/18
  
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* Added SimpleMatrix.randomNormal() for drawing numbers from a normal distribution with zero mean
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* Changed minimum Java version from 6 to 7
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* Added EjmlUnitTests.assertEquals() and similar for SimpleMatrix
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* Added SimpleEVD.getEigenvalues()
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* Removed DenseMatrix64F.setReshape()
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* Added SimpleSVD.getSingularValues()
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** Matrix.set(matrix) will now reshape the matrix that's being assigned
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* Fixed issue with generics and SimpleEVD and SimpleSVD
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* Triangle quality now just uses diagonal elements to scale results
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* Auto generated float 32-bit support of all 64-bit code
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* Support for complex matrices
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* SimpleMatrix
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** Thanks IHMC (http://ihmc.us) for funding parts of this addition
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** Added support for float 32-bit matrices
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** Basic operations (e.g. multiplication, addition, ... etc)
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** Replaced extractDiag() with diag() and changed behavior.
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** LU Decomposition + Linear Solver
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* Fixed Sized Matrix
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** QR Decomposition + Linear Solver
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** Added MatrixFeatures
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** Cholesky Decomposition + Linear Solver
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** Added NormOps
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** Square Matrices: inverse, solve, determinant
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** FixedOps
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** Overdetermined: solve
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*** Discovered a bug in a unit test
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* ComplexMath64F
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*** Fixed bugs in elementAbsMax() elementAbsMin() trace()
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** Added sqrt(Complex64F)
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*** Improved the speed of element-wise max and min operations
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* Tweaked matrix inheritance to better support the addition of complex matrices
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* New naming for matrices (see readme)
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* Added RandomMatrices setGaussian() and createGaussian()
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* New naming for operation classes (see readme)
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* Changed how SimpleMatrix computes its threshold for singular values
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* Operations API
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** Farley Lai noticed this issue
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** added minCol(), maxCol(), minRow(), maxRow()
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* Added SingularOps.singularThreshold()
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* Sparse matrix support for real values
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* Added no argument rank and nullity for SVD using default threshold.
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** Compressed Sparse Column (CSC) a.k.a. Compressed Column
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* SimpleMatrix.loadCSV() now supports derived types
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** Triplet
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* Added primitive 32bit data structures to make adding 32bit support in the future smoother
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** Basic operation up to triangular solve
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* Equation
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* A script has been provided that will perform most of the refactorings:
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** 1x1 matrix can be assigned to a double scalar
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** convert_to_ejml31.py
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** When referencing a single element in a matrix it will be extracted as a scalar and not a 1x1 matrix.
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* Fixed a minor printing glitch for dense matrices. There was an extra space
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** Added sqrt() to parser
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* Equations
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** lookupDouble() will now work on 1x1 matrices
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** Assignment to a submatrix now works with variables
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* CommonOps
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*** A((2+i):10,1:20) = 5  <--* this works now
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** Added dot(a,b) for dot product between two vectors
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** Added sum(), sum(A,0), sum(A,1)
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** Added extractRow and extractColumn
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**       min(A,0), max(A,0), min(A,1), max(A,1),
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* FixedOps
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* Modules now have "ejml-" as a suffice to avoid collisions with other libraries
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** Added extractRow and extractColumn.  Thanks nknize for inspiring this modification with a pull request
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* equations module has been moved into ejml-simple for dependency reasons
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** Added subtract and subtractEquals.  Thanks nknize for the pull request
 
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* Added determinant to Cholesky decomposition interface
 
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* Added getDecomposition() to LinearSolver to provide access to internal classes, which can be useful in some specialized cases.  Alternatives were very ugly.
 

Latest revision as of 22:08, 17 May 2017

Version 0.31

2017/05/18

  • Changed minimum Java version from 6 to 7
  • Added SimpleEVD.getEigenvalues()
  • Added SimpleSVD.getSingularValues()
  • Fixed issue with generics and SimpleEVD and SimpleSVD
  • Auto generated float 32-bit support of all 64-bit code
  • SimpleMatrix
    • Added support for float 32-bit matrices
    • Replaced extractDiag() with diag() and changed behavior.
  • Fixed Sized Matrix
    • Added MatrixFeatures
    • Added NormOps
    • FixedOps
      • Discovered a bug in a unit test
      • Fixed bugs in elementAbsMax() elementAbsMin() trace()
      • Improved the speed of element-wise max and min operations
  • New naming for matrices (see readme)
  • New naming for operation classes (see readme)
  • Operations API
    • added minCol(), maxCol(), minRow(), maxRow()
  • Sparse matrix support for real values
    • Compressed Sparse Column (CSC) a.k.a. Compressed Column
    • Triplet
    • Basic operation up to triangular solve
  • A script has been provided that will perform most of the refactorings:
    • convert_to_ejml31.py
  • Fixed a minor printing glitch for dense matrices. There was an extra space
  • Equations
    • Assignment to a submatrix now works with variables
      • A((2+i):10,1:20) = 5 <--* this works now
    • Added sum(), sum(A,0), sum(A,1)
    • min(A,0), max(A,0), min(A,1), max(A,1),
  • Modules now have "ejml-" as a suffice to avoid collisions with other libraries
  • equations module has been moved into ejml-simple for dependency reasons
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