Array operations

Overview

Multik NDArrays support a rich set of operations organized into four categories:

Arithmetic

Operation	Operator / Function	Description
Addition	`+`, `+=`	Element-wise addition.
Subtraction	`-`, `-=`	Element-wise subtraction.
Multiplication	``, `=`	Element-wise multiplication.
Division	`/`, `/=`	Element-wise division.
Unary negation	`-a`	Negate all elements.

See Arithmetic operations for details.

Logical

Operation	Function	Description
Logical AND	`and`	Element-wise AND, returns `Int`.
Logical OR	`or`	Element-wise OR, returns `Int`.

See Logical operations for details.

Comparison

Operation	Function	Description
Element-wise min	`minimum`	Element-wise minimum of two arrays.
Element-wise max	`maximum`	Element-wise maximum of two arrays.

See Comparison operations for details.

Universal (collection-style)

Functions like map, filter, fold, reduce, forEach, sorted, and many more. These follow Kotlin collection conventions and work on any MultiArray<T, D>.

See Universal operations for the full list.

19 February 2026