File: rref.cat

package info (click to toggle)
scilab 2.6-4
  • links: PTS
  • area: non-free
  • in suites: woody
  • size: 54,632 kB
  • ctags: 40,267
  • sloc: ansic: 267,851; fortran: 166,549; sh: 10,005; makefile: 4,119; tcl: 1,070; cpp: 233; csh: 143; asm: 135; perl: 130; java: 39
file content (25 lines) | stat: -rw-r--r-- 665 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
rref             Scilab Group             Scilab Function              rref
NAME
   rref - computes  matrix row echelon form by lu transformations
  
CALLING SEQUENCE
 R=rref(A)
PARAMETERS
 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
  
EXAMPLE
 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, qr