Scilab Home page | Wiki | Bug tracker | Forge | Mailing list archives | ATOMS | File exchange
Please login or create an account
Change language to: English - Português - 日本語

Please note that the recommended version of Scilab is 6.1.1. This page might be outdated.
See the recommended documentation of this function

Aide Scilab >> Algèbre Lineaire > rref

# rref

computes matrix row echelon form by lu transformations

### Calling Sequence

`R=rref(A)`

### Arguments

A

m x n matrix with scalar entries

R

m x n matrix,row echelon form of a

### Description

`rref` computes the row echelon form of the given matrix by left lu decomposition. If ones need the transformation used just call `X=rref([A,eye(m,m)])` the row echelon form `R` is `X(:,1:n)` and the left transformation `L` is given by `X(:,n+1:n+m)` such as `L*A=R`

### Examples

```A=[1 2;3 4;5 6];
X=rref([A,eye(3,3)]);
R=X(:,1:2)
L=X(:,3:5);L*A```

### See Also

• lu — factorisation LU
• qr — factorisation QR

### Comments

Add a comment:
Please login to comment this page.

 << rowshuff Algèbre Lineaire schur >>

 Scilab EnterprisesCopyright (c) 2011-2017 (Scilab Enterprises)Copyright (c) 1989-2012 (INRIA)Copyright (c) 1989-2007 (ENPC)with contributors Last updated:Wed Oct 05 12:10:40 CEST 2011