File: orth.man

package info (click to toggle)
scilab 2.4-1
  • links: PTS
  • area: non-free
  • in suites: potato, slink
  • size: 55,196 kB
  • ctags: 38,019
  • sloc: ansic: 231,970; fortran: 148,976; tcl: 7,099; makefile: 4,585; sh: 2,978; csh: 154; cpp: 101; asm: 39; sed: 5
file content (33 lines) | stat: -rw-r--r-- 597 bytes parent folder | download | duplicates (2) 
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
26
27
28
29
30
31
32
33
 
.TH orth 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
orth - orthogonal basis
.SH CALLING SEQUENCE
.nf
Q=orth(A)
.fi
.SH PARAMETERS
.TP
A
: real or complex matrix
.TP
Q
: real or complex matrix
.SH DESCRIPTION
.Vb Q=orth(A)
returns \fVQ\fR, an orthogonal basis for the span of \fVA\fR.
Range(\fVQ\fR) = Range(\fVA\fR) and \fVQ'*Q=eye\fR.
.LP
The number of columns of \fVQ\fR is the rank of \fVA\fR as determined
by the QR algorithm.
.SH EXAMPLE
.nf
A=rand(5,3)*rand(3,4);
[X,dim]=rowcomp(A);X=X';
svd([orth(A),X(:,1:dim)])
.fi
.SH SEE ALSO
qr, rowcomp, colcomp, range