imatrix
Creates an identity matrix of the requested integer size.
For an integer n, imatrix creates an n by n Matrix with ones on the main diagonal and zeros elsewhere. A non-integer symbolic size remains as an unevaluated imatrix call.
Examples
These examples use Nerdamer Notation.
Create a 3 by 3 identity matrix.
imatrix(3)
// → matrix([1, 0, 0], [0, 1, 0], [0, 0, 1])Interfaces
The same operation is available through the interfaces below.
Nerdamer Notation
Use this form inside input passed to nerdamer(...).
imatrix(arg1)nerdamer.imatrix
Call the operation through the default nerdamer import.
nerdamer.imatrix(x: Expression): Expression | MatrixParameters
| Name | Type | Description |
|---|---|---|
x | Expression | — |
Returns
Expression | Matrix — A Matrix for an integer argument, or an unevaluated `imatrix(x)` Expression when the size is not an integer.
Direct JavaScript / TypeScript API
Import the operation directly from its package entry point.
import { imatrix } from 'nerdamer/structures';imatrix(x: Expression): Expression | MatrixParameters
| Name | Type | Description |
|---|---|---|
x | Expression | — |
Returns
Expression | Matrix — A Matrix for an integer argument, or an unevaluated `imatrix(x)` Expression when the size is not an integer.