Nerdamer
Documentation Playground Showcase GitHub
DocumentationPlaygroundShowcaseGitHub
OverviewGetting startedChoosing how to use NerdamerMigrating from Nerdamer 1.xx
Expression syntaxFunction reference
Overview & referenceScripting examplesUser-defined functions
API overviewnerdamer APISettings & configurationText output & public helpersAPI examples
ArchitectureExpression modelParser internalsCodebase mapInternals inspectorHow to developCode conventions
Documentation moved.

This entry is now part of the unified function reference. Open the unified page →

API/nerdamer API
Function

nerdamer.imatrix

src/index.ts:851
nerdamer.imatrix(x: Expression): Expression | Matrix

Creates an identity matrix of integer size.

Parameters

NameTypeDescription
xExpression—

Returns

Expression | Matrix — A Matrix for an integer argument, or an unevaluated `imatrix(x)` Expression when the size is not an integer.

Nerdamer

Symbolic mathematics for JavaScript and TypeScript.

DocumentationNerdamer NotationNerdamer Scriptingnerdamer APIJavaScript / TypeScript API
ProjectPlaygroundInternalsGitHub
Copyright © 2013–2026 Martin Donk · Licensed under the Apache License 2.0