kmath-core/space.kscience.kmath.expressions/ExpressionAlgebra

ExpressionAlgebra

interface ExpressionAlgebra<in T, E> : Algebra<E>

A context for expression construction

Parameters

T

type of the constants for the expression

E

type of the actual expression state

Functions

binaryOperation

open fun binaryOperation(operation: String, left: E, right: E): E

Dynamically invokes a binary operation with the certain name.

binaryOperationFunction

open fun binaryOperationFunction(operation: String): (E, E) -> E

Dynamically dispatches a binary operation with the certain name.

open fun bindSymbol(value: String): E

The same as bindSymbolOrNull but throws an error if symbol could not be bound

bindSymbolOrNull

open fun bindSymbolOrNull(value: String): E?

Wraps a raw string to T object. This method is designed for three purposes:

abstract fun const(value: T): E

A constant expression that does not depend on arguments.

@UnstableKMathAPI

open fun export(arg: E): E

Export an algebra element, so it could be accessed even after algebra scope is closed. This method must be used on algebras where data is stored externally or any local algebra state is used. By default (if not overridden), exports the object itself.

open fun unaryOperation(operation: String, arg: E): E

Dynamically invokes a unary operation with the certain name.

unaryOperationFunction

open fun unaryOperationFunction(operation: String): (E) -> E

Dynamically dispatches a unary operation with the certain name.

Inheritors

FunctionalExpressionAlgebra

SimpleAutoDiffField

Extensions

val <T, E> ExpressionAlgebra<T, E>.binding: ReadOnlyProperty<Any?, E>

Bind a symbol by name inside the ExpressionAlgebra

Sources