kmath/CHANGELOG.md

KMath

[Unreleased]

Added

• fun annotation for SAM interfaces in library
• Explicit public visibility for all public APIs
• Better trigonometric and hyperbolic functions for AutoDiffField (https://github.com/mipt-npm/kmath/pull/140)
• Automatic README generation for features (#139)
• Native support for memory, core and dimensions
• kmath-ejml to supply EJML SimpleMatrix wrapper (https://github.com/mipt-npm/kmath/pull/136)
• A separate Symbol entity, which is used for global unbound symbol.
• A Symbol indexing scope.
• Basic optimization API for Commons-math.
• Chi squared optimization for array-like data in CM
• Fitting utility object in prob/stat
• ND4J support module submitting NDStructure and NDAlgebra over INDArray
• Coroutine-deterministic Monte-Carlo scope with a random number generator
• Some minor utilities to kmath-for-real
• Generic operation result parameter to MatrixContext
• New MatrixFeature interfaces for matrix decompositions
• Basic Quaternion vector support in kmath-complex.

Changed

• Package changed from scientifik to space.kscience
• Gradle version: 6.6 -> 6.8.2
• Minor exceptions refactor (throwing IllegalArgumentException by argument checks instead of IllegalStateException)
• Polynomial secondary constructor made function
• Kotlin version: 1.3.72 -> 1.4.30
• kmath-ast doesn't depend on heavy kotlin-reflect library
• Full autodiff refactoring based on Symbol
• kmath-prob renamed to kmath-stat
• Grid generators moved to kmath-for-real
• Use Point<Double> instead of specialized type in kmath-for-real
• Optimized dot product for buffer matrices moved to kmath-for-real
• EjmlMatrix context is an object
• Matrix LUP inverse renamed to inverseWithLup
• NumericAlgebra moved outside of regular algebra chain (Ring no longer implements it).
• Features moved to NDStructure and became transparent.
• Capitalization of LUP in many names changed to Lup.
• Refactored NDStructure algebra to be more simple, preferring under-the-hood conversion to explicit NDStructure types
• Refactor histograms. They are marked as prototype
• Complex and related features moved to a separate module kmath-complex
• Refactor AlgebraElement
• symbol method in Algebra renamed to bindSymbol to avoid ambiguity
• Add out projection to Buffer generic

Deprecated

Removed

• kmath-koma module because it doesn't support Kotlin 1.4.
• Support of legacy JS backend (we will support only IR)
• toGrid method.
• Public visibility of BufferAccessor2D
• Real class

Fixed

• symbol method in MstExtendedField (https://github.com/mipt-npm/kmath/pull/140)

Security

[0.1.4]

Added

• Functional Expressions API
• Mathematical Syntax Tree, its interpreter and API
• String to MST parser (https://github.com/mipt-npm/kmath/pull/120)
• MST to JVM bytecode translator (https://github.com/mipt-npm/kmath/pull/94)
• FloatBuffer (specialized MutableBuffer over FloatArray)
• FlaggedBuffer to associate primitive numbers buffer with flags (to mark values infinite or missing, etc.)
• Specialized builder functions for all primitive buffers like IntBuffer(25) { it + 1 } (https://github.com/mipt-npm/kmath/pull/125)
• Interface NumericAlgebra where number operation is available to convert numbers to algebraic elements
• Inverse trigonometric functions support in ExtendedField (asin, acos, atan) (https://github.com/mipt-npm/kmath/pull/114)
• New space extensions: average and averageWith
• Local coding conventions
• Geometric Domains API in kmath-core
• Blocking chains in kmath-coroutines
• Full hyperbolic functions support and default implementations within ExtendedField
• Norm support for Complex

Changed

• readAsMemory now has throws IOException in JVM signature.
• Several functions taking functional types were made inline.
• Several functions taking functional types now have callsInPlace contracts.
• BigInteger and BigDecimal algebra: JBigDecimalField has companion object with default math context; minor optimizations
• power(T, Int) extension function has preconditions and supports Field<T>
• Memory objects have more preconditions (overflow checking)
• tg function is renamed to tan (https://github.com/mipt-npm/kmath/pull/114)
• Gradle version: 6.3 -> 6.6
• Moved probability distributions to commons-rng and to kmath-prob

Fixed

• Missing copy method in Memory implementation on JS (https://github.com/mipt-npm/kmath/pull/106)
• D3.dim value in kmath-dimensions
• Multiplication in integer rings in kmath-core (https://github.com/mipt-npm/kmath/pull/101)
• Commons RNG compatibility (https://github.com/mipt-npm/kmath/issues/93)
• Multiplication of BigInt by scalar