Reduced row echelon form: Difference between revisions

</pre>

=={{header|Wren}}==

{{libheader|Wren-fmt}}

{{libheader|Wren-matrix}}

The above module has a method for this built in as it's needed to implement matrix inversion using the Gauss-Jordan method.

<lang ecmascript>import "/matrix" for Matrix

import "/fmt" for Fmt

var m = Matrix.new([

[ 1, 2, -1, -4],

[ 2, 3, -1, -11],

[-2, 0, -3, 22]

])

System.print("Original:\n")

Fmt.mprint(m, 3, 0)

System.print("\nRREF:\n")

m.toReducedRowEchelonForm

Fmt.mprint(m, 3, 0)</lang>

{{out}}

<pre>

Original:

| 1 2 -1 -4|

| 2 3 -1 -11|

| -2 0 -3 22|

RREF:

| 1 0 0 -8|

| 0 1 0 1|

| 0 0 1 -2|