@stackline/ndarray-ops | Alexandro.Net

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Install the scoped package

npm install @stackline/[email protected]

CommonJS, the historical deep entry, ESM default and named exports, AMD, and the classic globalThis.ndarrayOps browser surface are included.

CommonJS

const ops = require('@stackline/ndarray-ops')
ops.assign(destination, source)

ES modules

import ops, { add, sum } from '@stackline/ndarray-ops'
add(out, left, right)

Compatibility

Static implementation, historical behavior

150 operations

Export names, insertion order, arities, function names, mutation, return values, scalar and reversed-operand families match [email protected].

Layout fidelity

Arbitrary rank, offsets, positive, negative and zero strides, mixed orders with 64-cell reverse blocking, rank-zero views, empty arrays, aliases, and generic storage preserve observable traversal.

Strict CSP

No eval or new Function is used. Loading and execution work when string code generation is prohibited.

Malformed-input hardening

Non-finite or out-of-range metadata and invalid order permutations fail synchronously instead of compiling invalid code, wrapping addresses, or hanging.

Valid metadata uses non-negative signed-32-bit integer shape extents, signed-32-bit integer strides and offsets, a complete order permutation, a string dtype, and compatible storage. NaN and Infinity remain valid data values.

Operation inventory

The complete fixed API

Public operation families and examples
Family	Operations	Variants
Arithmetic	`add sub mul div mod`	`eq`, `s`, `seq`
Bitwise	`band bor bxor lshift rshift rrshift`	`eq`, `s`, `seq`
Logic and comparison	`and or eq neq lt gt leq geq`	array, scalar and in-place
Math	`abs acos asin atan ceil cos exp floor log round sin sqrt tan max min atan2 pow`	array, scalar, in-place and reversed forms
Reduction	`any all sum prod norm2squared norm2 norminf norm1 sup inf`	scalar result
Utility	`argmin argmax random assign assigns equals`	indices, mutation or comparison

import ndarray from 'ndarray'
import { add, sum } from '@stackline/ndarray-ops'

const left = ndarray(new Float64Array([1, 2, 3, 4]), [2, 2])
const right = ndarray(new Float64Array([4, 3, 2, 1]), [2, 2])
const out = ndarray(new Float64Array(4), [2, 2])

add(out, left, right)
console.log(sum(out)) // 20

Adoption

Keep the historical import key

An exact npm alias lets existing require('ndarray-ops'), import ... from 'ndarray-ops', and deep-entry imports remain unchanged.

{
  "dependencies": {
    "ndarray-ops": "npm:@stackline/[email protected]"
  }
}

Run the downstream's own install, test, type, lint, build and layout-specific smoke gates. Invalid view metadata is the intentional compatibility boundary; valid operation behavior remains the migration contract.

Release evidence

What the package gate covers

All 150 API entries and every deterministic operation across layouts.
Shared-buffer overlap, generic get/set order, block boundaries and rank 10,000.
Strict CSP, CommonJS, ESM, browser, npm alias and TypeScript 3.9/current consumers.
Warm rank-1, rank-2 and rank-3 performance relative to the exact upstream artifact.
One-node production closure, licenses, CycloneDX SBOM, package lint and registry audits.

Verification guide · Full compatibility contract · Migration guide · Security policy

Independent maintenance and attribution

This package is independently maintained and is not affiliated with or endorsed by Mikola Lysenko, the scijs organization, or DefinitelyTyped. The original runtime and declaration attribution is preserved under the MIT license.