Releases | Open Source Science

Restores a Java 8 compatible mockito version, which is used only for tests purposes; the library itself did not change.

- Java
Published by maisonobe 11 months ago

Version 4.0 is a major release.

Highlights in the 4.0 release are:

Add a (backwards) smoother counterpart to the linear Kalman, extended Kalman and unscented filters.
Add inverse transform method to UnscentedTransformProvider.
Added reset mechanism in ODE event detection.
Added FieldPolynomialFunctionLagrangeForm.
Added native way to stack an independent variable in (Field)Gradient.
Add boolean for propagation direction in (Field)AdaptableInterval.
Added getHipparchusVersion method to MathUtils.
Fixed issue with open boundaries in Euclidean 2D-polygons.
Increased dimension of directions numbers in Sobol sequence generation.
Added FieldBivariateGridInterpolator, FieldBilinearInterpolator and FieldBilinearInterpolatingFunction.
Fixed JUnit pioneer dependency version not compatible with Java 8.
Changed CDN for faster site load.
Added moveTowards method to Point interface.
Rename RungeKutta(Field)Integrator as FixedStepRungeKutta(Field)Integrator.
Improved robustness of BSP tree operations.
Rename DEFAULTMAXCHECK as DEFAULTMAX_CHECK.
Made constructors of abstract classes protected when they were public.
Removed obsolete hipparchus-migration module.
Added getAddendum() to CalculusFieldElement interface.
Added getLocalizedString(baseName, key, locale) with default implementation to Localizable interface.
Migrated tests from JUnit 4 to JUnit 5.

- Java
Published by maisonobe 11 months ago

Version 3.1 is a maintenance release.

Highlights in the 3.1 release are:

Add public, static access to integrators name.
Add possibility to use real coefficients for Butcher array based Field integrators.
Added constrained optimization. Thanks to Francesco Rocca.
Added GCD and LCM to {Big}Fraction. Thanks to Axel Kramer.
Add default implementations in CalculusFieldElement and inheritors.
Add square method to CalculusFieldElement.
Added Gauss-Markov order 1 autoregressive process generation.
Added equals and hashCode to OpenIntTo{Double|Field}HashMap.
Allow variable arguments for building PolynomialFunction.
Extracted class JacobiKey from PolynomialsUtils.
Allow retrieving correct Cardan/Euler angles even at singularity.
Improved performance of Gradient.
Replace uses of scalar multiplication on Field one.
Rework interfaces for Derivative and FieldDerivative.
Several bug fixes in field classes and rotation

- Java
Published by maisonobe almost 2 years ago

Version 3.0 is a major release of Hipparchus. The main changes are:

Field version of Erf and Gamma classes.
A new Blendable interface for data blending
Torque-free motion model for non-symmetrical rigid body
A SmoothStepFactory which allow for quick creation of common and generic smoothstep function.
Replacement of EigenDecomposition by EigenDecompositionSymmetric and EigenDecompositionNonSymmetric.
Separation of {Field}ODEEventDetector and {Field}ODEEventHandler.
Improved compatibility with recent JDK.
Many bug fixes in FastMath, polynomial functions, eigen decomposition, etc.

- Java
Published by BryanCazabonne over 2 years ago

- Java
Published by maisonobe over 3 years ago

- Java
Published by maisonobe over 3 years ago

Version 2.1 is a maintenance release.

Highlights in the 2.1 release are:

addition of 3D version of complex function plotter,
addition of ConvergenceCheckerOrMultiplexer and ConvergenceCheckerAndMultiplexer,
addition of inverse Jacobi elliptic functions,
optional modified weights to Akima interpolation,
modified Gram-Schmidt basis orthonormalization process,
generation of convergents streams in continued fractions,
addition of equalsIee754 to points in all topologies to handle NaN coordinates.

- Java
Published by maisonobe almost 4 years ago

addition of a sequential Gauss-Newton optimizer
improved relative scheduling of step handlers and events handlers in ODE addition of a finish callback in step handlers
replacement of RealFieldElement by CalculusFieldElement interface
many improvements in Complex to fully implement CalculusFieldElement with correct branch cuts
addition of FieldComplex
addition of complex and field complex univariate integrals (including contour integrals)
addition of field versions of univariate integrators
implementation of elliptic functions and integrals (for real, complex and general fields)
faster simultaneous computation of sinh/cosh
addition of the Ryū algorithm to generate very fast the shortest decimal representation of a floating point number that maintains round-trip safety.

- Java
Published by maisonobe over 4 years ago

ecosyste.ms