9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello All,
I am using following awk command in my shell script. I want to compare the value in column 2 and colum 3 after taking their absolute value. Column $2 and $3 can have any value positive or negative or both.
awk -F"|" '{print $0,($2>$3?"F":"T")}' OFS='|' myfile.txt
Your help... (2 Replies)
Discussion started by: angshuman
2 Replies
2. Shell Programming and Scripting
None know if exists a function/command that get the absolute value for a number?
Thanks:) (14 Replies)
Discussion started by: Steph85
14 Replies
3. UNIX for Dummies Questions & Answers
I have a big file with 127 columns and 869 rows. What I am trying to do is to get the absolute value of all numbers in the file, and then get the maximum of each column.
If this was for one column it wouldn't be a problem, I would use:
awk '{ print ($1 >= 0) ? $1 : 0 - $1}' file > out1... (3 Replies)
Discussion started by: cosmologist
3 Replies
4. Shell Programming and Scripting
Hi,
I have a file as follows:
|-30.0|Appls. executing in db manager currently = 2
|-80.0|Locks held currently = 1
| 90.0|High water mark (bytes) = 65536
|-50.0|Configured size (bytes) = 16777216
|-100.0|Current size (bytes) ... (6 Replies)
Discussion started by: sudvishw
6 Replies
5. Shell Programming and Scripting
Hi,
i want to caluculate sum and absolute sum information of the 2nd column.
sum(abs(ENO)),sum(ENO)
file1 contains the employee information.
"abc","+10000.00","100"
"bbc","-3000.00","400"
"cbc","+20000.90","500"
"dbc","-4000.00","600"
output should get this
Sum(abs(eno)) ... (5 Replies)
Discussion started by: onesuri
5 Replies
6. UNIX for Dummies Questions & Answers
is there any function in unix which will convert a integer to absolute value with a single decimal point.
suppose x=15232
y=x/1024=14.875
i want y to be 14.8
Similarly if y=6.29452 it should come as 6.3 (3 Replies)
Discussion started by: dr46014
3 Replies
7. UNIX for Dummies Questions & Answers
is cd ~ considered an absolute path? (2 Replies)
Discussion started by: Kirichiko
2 Replies
8. Shell Programming and Scripting
How would I get the absolute filename of a selected file...I want to control click...I already have the context menu all set to run a script...I just need to be able to get the file name of the file I control clicked on.
In windows it is as follows:
set filename=%~f1
set name=%~n1
set... (0 Replies)
Discussion started by: mainegate
0 Replies
9. UNIX for Dummies Questions & Answers
Hi,
I am trying to find out how to get an absolute value for integer in ksh.
I tried using abs... but that doesn't work ! this is the workaround I did, but isn't there an inbuilt function to get absolute value for any variable !
Please help as i am new to unix :confused:
Thanks,
... (3 Replies)
Discussion started by: icyhot
3 Replies
POW(3) Linux Programmer's Manual POW(3)
NAME
pow, powf, powl - power functions
SYNOPSIS
#include <math.h>
double pow(double x, double y);
float powf(float x, float y);
long double powl(long double x, long double y);
Link with -lm.
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
powf(), powl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99
DESCRIPTION
The pow() function returns the value of x raised to the power of y.
RETURN VALUE
On success, these functions return the value of x to the power of y.
If x is a finite value less than 0, and y is a finite noninteger, a domain error occurs, and a NaN is returned.
If the result overflows, a range error occurs, and the functions return HUGE_VAL, HUGE_VALF, or HUGE_VALL, respectively, with the mathemat-
ically correct sign.
If result underflows, and is not representable, a range error occurs, and 0.0 is returned.
Except as specified below, if x or y is a NaN, the result is a NaN.
If x is +1, the result is 1.0 (even if y is a NaN).
If y is 0, the result is 1.0 (even if x is a NaN).
If x is +0 (-0), and y is an odd integer greater than 0, the result is +0 (-0).
If x is 0, and y greater than 0 and not an odd integer, the result is +0.
If x is -1, and y is positive infinity or negative infinity, the result is 1.0.
If the absolute value of x is less than 1, and y is negative infinity, the result is positive infinity.
If the absolute value of x is greater than 1, and y is negative infinity, the result is +0.
If the absolute value of x is less than 1, and y is positive infinity, the result is +0.
If the absolute value of x is greater than 1, and y is positive infinity, the result is positive infinity.
If x is negative infinity, and y is an odd integer less than 0, the result is -0.
If x is negative infinity, and y less than 0 and not an odd integer, the result is +0.
If x is negative infinity, and y is an odd integer greater than 0, the result is negative infinity.
If x is negative infinity, and y greater than 0 and not an odd integer, the result is positive infinity.
If x is positive infinity, and y less than 0, the result is +0.
If x is positive infinity, and y greater than 0, the result is positive infinity.
If x is +0 or -0, and y is an odd integer less than 0, a pole error occurs and HUGE_VAL, HUGE_VALF, or HUGE_VALL, is returned, with the
same sign as x.
If x is +0 or -0, and y is less than 0 and not an odd integer, a pole error occurs and +HUGE_VAL, +HUGE_VALF, or +HUGE_VALL, is returned.
ERRORS
See math_error(7) for information on how to determine whether an error has occurred when calling these functions.
The following errors can occur:
Domain error: x is negative, and y is a finite noninteger
errno is set to EDOM. An invalid floating-point exception (FE_INVALID) is raised.
Pole error: x is zero, and y is negative
errno is set to ERANGE (but see BUGS). A divide-by-zero floating-point exception (FE_DIVBYZERO) is raised.
Range error: the result overflows
errno is set to ERANGE. An overflow floating-point exception (FE_OVERFLOW) is raised.
Range error: the result underflows
errno is set to ERANGE. An underflow floating-point exception (FE_UNDERFLOW) is raised.
CONFORMING TO
C99, POSIX.1-2001. The variant returning double also conforms to SVr4, 4.3BSD, C89.
BUGS
For a pole error, errno is set to EDOM; POSIX.1 says it should be set to ERANGE.
If x is negative, then large negative or positive y values yield a NaN as the function result, with errno set to EDOM, and an invalid
(FE_INVALID) floating-point exception. For example, with pow(), one sees this behavior when the absolute value of y is greater than about
9.223373e18.
In version 2.3.2 and earlier, when an overflow or underflow error occurs, glibc's pow() generates a bogus invalid floating-point exception
(FE_INVALID) in addition to the overflow or underflow exception.
SEE ALSO
cbrt(3), cpow(3), sqrt(3)
COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
2008-08-10 POW(3)