Hi
Do you have any pointers how to validate numbers (not to contain alphabets and special characters) and date(MM/DD/YYYY) format.
I used following regular expression to validate integer, which is not working in the default shell:
nodigits="$(echo $testvalue | sed 's/]//g')"
... (4 Replies)
Hey guys, I'm just messing around with a perl webpage. The idea is to make a simple validation form that will later insert a record into my DVD database. it's all very basic at the moment, and I worked up my script from the form validation example I found on this website:... (5 Replies)
Hi Everyone,
#!/usr/bin/perl
$a = ".a!";
if ($a =~ s///g) {
print "invalid file name\n";
} else {
print "valid file name\n";
}
but the output is:
Invalid range "_-." in regex; marked by <-- HERE in m// at ./a.pl line 5.
the linux file name should be A-Z, a-z,... (8 Replies)
The Code:
#!/usr/bin/perl
use strict;
use warnings;
print "Please enter numbers, separated by commas: ";
my $data=<STDIN>; chomp $data;
my @dataset=split(/,/, $data);
my $sum = 0;
foreach my $num (@dataset) {
$sum += $num;
}
my $total_nums = scalar(@dataset);
my $mean =... (1 Reply)
Hi
I have a file with number of entries
name 1 123
name 1 345
name 1 65346
name2 3243
name2 24234
name 2 234234
so on .........
how to count total number of entries for name 1 and name2...and so on Please guide. (1 Reply)
Hi Everyone,
I have a flatfile "inbox.txt" which contains some information:
Location 0, folder "Inbox", SIM memory, Inbox folder
SMS message
SMSC number : "+24800000023"
Sent : Sat 04 Aug 2012 09:01:00 PM +0700
Coding : Default GSM alphabet... (5 Replies)
I have the following proc.
proc get_add {arg1 arg2 arg3 arg4 arg 5 .. ... arg N }
{
}
i need to count the number of arguments and also i need those arguments stored in an array.
please help out
---------- Post updated at 06:33 PM ---------- Previous update was at 05:30 PM ----------
... (1 Reply)
Hello all
I have a data base of information that is formatted like so:
JSD4863 XXX-XX-XXXX DOE, JOHN C JR-II BISS CPSC BS INFO TECH 412/779-9445
I need the last four digits of the phone number. However, many lines contain
'garbage data' that I'm not interested in. So i used a 'for loop'... (7 Replies)
Hi.
I want to search 10 phone numbers automatically in Facebook and store the result in some format.
Can anyone help me with the script.
I am using kali Linux. (2 Replies)
Discussion started by: looksthatmatter
2 Replies
LEARN ABOUT CENTOS
sptrfs.f
sptrfs.f(3) LAPACK sptrfs.f(3)NAME
sptrfs.f -
SYNOPSIS
Functions/Subroutines
subroutine sptrfs (N, NRHS, D, E, DF, EF, B, LDB, X, LDX, FERR, BERR, WORK, INFO)
SPTRFS
Function/Subroutine Documentation
subroutine sptrfs (integerN, integerNRHS, real, dimension( * )D, real, dimension( * )E, real, dimension( * )DF, real, dimension( * )EF, real,
dimension( ldb, * )B, integerLDB, real, dimension( ldx, * )X, integerLDX, real, dimension( * )FERR, real, dimension( * )BERR, real,
dimension( * )WORK, integerINFO)
SPTRFS
Purpose:
SPTRFS improves the computed solution to a system of linear
equations when the coefficient matrix is symmetric positive definite
and tridiagonal, and provides error bounds and backward error
estimates for the solution.
Parameters:
N
N is INTEGER
The order of the matrix A. N >= 0.
NRHS
NRHS is INTEGER
The number of right hand sides, i.e., the number of columns
of the matrix B. NRHS >= 0.
D
D is REAL array, dimension (N)
The n diagonal elements of the tridiagonal matrix A.
E
E is REAL array, dimension (N-1)
The (n-1) subdiagonal elements of the tridiagonal matrix A.
DF
DF is REAL array, dimension (N)
The n diagonal elements of the diagonal matrix D from the
factorization computed by SPTTRF.
EF
EF is REAL array, dimension (N-1)
The (n-1) subdiagonal elements of the unit bidiagonal factor
L from the factorization computed by SPTTRF.
B
B is REAL array, dimension (LDB,NRHS)
The right hand side matrix B.
LDB
LDB is INTEGER
The leading dimension of the array B. LDB >= max(1,N).
X
X is REAL array, dimension (LDX,NRHS)
On entry, the solution matrix X, as computed by SPTTRS.
On exit, the improved solution matrix X.
LDX
LDX is INTEGER
The leading dimension of the array X. LDX >= max(1,N).
FERR
FERR is REAL array, dimension (NRHS)
The forward error bound for each solution vector
X(j) (the j-th column of the solution matrix X).
If XTRUE is the true solution corresponding to X(j), FERR(j)
is an estimated upper bound for the magnitude of the largest
element in (X(j) - XTRUE) divided by the magnitude of the
largest element in X(j).
BERR
BERR is REAL array, dimension (NRHS)
The componentwise relative backward error of each solution
vector X(j) (i.e., the smallest relative change in
any element of A or B that makes X(j) an exact solution).
WORK
WORK is REAL array, dimension (2*N)
INFO
INFO is INTEGER
= 0: successful exit
< 0: if INFO = -i, the i-th argument had an illegal value
Internal Parameters:
ITMAX is the maximum number of steps of iterative refinement.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
September 2012
Definition at line 163 of file sptrfs.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 sptrfs.f(3)