hello all,
i am having a variable with a value of 0000010000 and if i add the variable with some no:
suppose
i=0000010000
n=`expr $i + 1`
echo $n
the output i am reciving is 10001 .it deletes all the zeros
but i need result as 0000010001..
please help me...
thanks in... (3 Replies)
Friends,
I have a file with contents like:
interface Serial0/4/0/0/1/1/1/1:0
encapsulation mfr
multilink
group 101
Now I need to manipulate the file in such a way that to all the numbers less than 163, 63 gets added and to all numbers greater than 163, 63 gets deducted.(The numbers... (2 Replies)
Hi,
I have a file with thousands of lines like this:
Chr1 477515 . ACCCC ACCC 17.7 . INDEL;DP=17;AF1=1;CI95=0.5,1;DP4=0,1,0,3;MQ=32;PV4=1,0.036,1,1
Chr1 481987 . A AAAT 62 . INDEL;DP=11;AF1=1;CI95=0.5,1;DP4=0,0,1,3;MQ=41
I want to make a file with... (2 Replies)
I have a file like this
product qty1 qty2 value
cola 50 25 1
pepsi 100 75 2
muffin 25 30 0.5
would like to do the following operations with one line command
1) disply the line having "Qty1" greater than or equal to 50
2) display the line Qty1 - Qty2 ... (2 Replies)
I am trying to perform arithmetric, for example, to increment the value of variable $a (say 3) by 0.05 but when I tried the following expression
let a=a+0.05
or a=$((a+0.05))
both returned
3.0499999999999998
I want to keep 2 decimal places so it returns 3.05 instead. (6 Replies)
hi,
I want to do multiple arithmetic operations in a single line. I tried with the following line
total_size=`expr ($total_size + $file_size) / 1024`
this line is throwing me error.
Im working on korn shell. Can i know how to do multiple arithmetic operations in a single line (2 Replies)
Hi
I want to perform arithmetic operations on output of `wc -l`.
for example
user046@sshell ~ $ ls -l
total 0
where "total 0" will increase one line in wc -l
filecount=`ls -l | wc -l`
here $filecount will be 1 but is should be 0
how to get rid of it ? (1 Reply)
Hi All,
I would like to set decimal point to 16 in the following bash script but it has syntax error at }:
awk '{printf"%.16e", (a<500,a++,$1/(a*1.1212121212121229e-02))}' input.dat >output.datHow may I set it in the correct way please? Thank you very much! (6 Replies)
Discussion started by: sxiong
6 Replies
LEARN ABOUT REDHAT
slagts
SLAGTS(l) ) SLAGTS(l)
NAME
SLAGTS - may be used to solve one of the systems of equations (T - lambda*I)*x = y or (T - lambda*I)'*x = y,
SYNOPSIS
SUBROUTINE SLAGTS( JOB, N, A, B, C, D, IN, Y, TOL, INFO )
INTEGER INFO, JOB, N
REAL TOL
INTEGER IN( * )
REAL A( * ), B( * ), C( * ), D( * ), Y( * )
PURPOSE
SLAGTS may be used to solve one of the systems of equations (T - lambda*I)*x = y or (T - lambda*I)'*x = y, where T is an n by n tridiagonal
matrix, for x, following the factorization of (T - lambda*I) as
(T - lambda*I) = P*L*U ,
by routine SLAGTF. The choice of equation to be solved is controlled by the argument JOB, and in each case there is an option to perturb
zero or very small diagonal elements of U, this option being intended for use in applications such as inverse iteration.
ARGUMENTS
JOB (input) INTEGER
Specifies the job to be performed by SLAGTS as follows:
= 1: The equations (T - lambda*I)x = y are to be solved, but diagonal elements of U are not to be perturbed. = -1: The equa-
tions (T - lambda*I)x = y are to be solved and, if overflow would otherwise occur, the diagonal elements of U are to be per-
turbed. See argument TOL below. = 2: The equations (T - lambda*I)'x = y are to be solved, but diagonal elements of U are not to
be perturbed. = -2: The equations (T - lambda*I)'x = y are to be solved and, if overflow would otherwise occur, the diagonal
elements of U are to be perturbed. See argument TOL below.
N (input) INTEGER
The order of the matrix T.
A (input) REAL array, dimension (N)
On entry, A must contain the diagonal elements of U as returned from SLAGTF.
B (input) REAL array, dimension (N-1)
On entry, B must contain the first super-diagonal elements of U as returned from SLAGTF.
C (input) REAL array, dimension (N-1)
On entry, C must contain the sub-diagonal elements of L as returned from SLAGTF.
D (input) REAL array, dimension (N-2)
On entry, D must contain the second super-diagonal elements of U as returned from SLAGTF.
IN (input) INTEGER array, dimension (N)
On entry, IN must contain details of the matrix P as returned from SLAGTF.
Y (input/output) REAL array, dimension (N)
On entry, the right hand side vector y. On exit, Y is overwritten by the solution vector x.
TOL (input/output) REAL
On entry, with JOB .lt. 0, TOL should be the minimum perturbation to be made to very small diagonal elements of U. TOL should
normally be chosen as about eps*norm(U), where eps is the relative machine precision, but if TOL is supplied as non-positive, then
it is reset to eps*max( abs( u(i,j) ) ). If JOB .gt. 0 then TOL is not referenced.
On exit, TOL is changed as described above, only if TOL is non-positive on entry. Otherwise TOL is unchanged.
INFO (output) INTEGER
= 0 : successful exit
element of the solution vector x. This can only occur when JOB is supplied as positive and either means that a diagonal element of
U is very small, or that the elements of the right-hand side vector y are very large.
LAPACK version 3.0 15 June 2000 SLAGTS(l)