Hello
I am getting this very annoying issue in awk:
awk '{a=12825;b=a*1.25; print b}' test
16031.2
Thing is the multiplication result is wrong... Result should be 16031.25.
I think the issue only happens on bigger numbers.
What can I do to get passed this?
Thanks by advance (3 Replies)
Hi Friends,
I am trying to round following number.
0.07435000
echo "0.07435000"|awk '{printf "%s\n",$1*100}'|awk '{printf "%.2f\n",$1}'
It returns: 7.435
It should return: 7.44
Any suggestion please?
Thanks,
Prashant (2 Replies)
I need to read the file divide 3 column with 2nd and run a modulus of 10 and check whether the remainder is zero or not if not print the entire line.
cat filename | awk '{ if ($3 / $2 % 10 != 0) print $0}'
Whats wrong with it ? (4 Replies)
Hi,
I have managed to round up numbers by using the following command:
echo "5.54" | awk '{printf "%.0f\n", $1}'
result
6
How can I round up all the numbers in a column in a file and print the lines with the new calculated totals?
Thanks, (3 Replies)
I received error "awk: division by zero" while executing the following statement.
SunOS 5.10 Generic_142900-15 sun4us sparc FJSV,GPUZC-M
echo 8 | awk 'END {printf ("%d\n",NR/$1 + 0.5);}' file1.lst
awk: division by zero
Can someone provide solution?
Thanks
Please use code... (11 Replies)
I had a person bring an interesting problem to me that appears to involve some sort of rounding inside awk. I've verified this with awk and nawk on Solaris as well as with gawk 3.1.5 on a Linux box.
The original code fragment he brought me was thus:
for (index=0; index < 1; index=index+.1)
... (4 Replies)
vmstat|awk '{print $3}'|tail -1
returns 6250511, but what I need is 24416, which is 6250511 divided by 256.
Please advise.
Thank you so much (2 Replies)
I have some calculation in my script which is similar to the below example . I find that sometimes when using large decimal digits, the output gets automatically rounded off and it is affecting the program. I am not able to understand what is happening here..
awk '{
a=6.32498922
a1=6.324... (5 Replies)
Hi Friends,
I have an input file like this
cat input
chr1 100 200 1 2
chr1 120 130 na 1
chr1 140 160 1 na
chr1 170 180 na na
chr1 190 220 0 0
chr1 220 230 nd 1
chr2 330 400 1 nd
chr2 410 450 nd nd
chr3 500 700 1 1
I want to calculate the division of 4th and 5th columns. But, if... (3 Replies)
Heyas
Trying to calculate the total size of a file by reading its bitrate.
Code snippet:
fs_expected() { #
# Returns the expected filesize in bytes
#
pr_str() {
ff=$(cat $TMP.info)
d="${ff#*bitrate: }"
echo "${d%%,*}" | $AWK '{print $1}' | head -n 1
}
t_BYTERATE=$((... (9 Replies)
Discussion started by: sea
9 Replies
LEARN ABOUT HPUX
fenv
fenv(5) File Formats Manual fenv(5)NAME
fenv - floating-point environment macros and functions
SYNOPSIS DESCRIPTION
The header declares two types and several macros and functions to provide access to the floating-point environment. The floating-point
environment refers collectively to the floating-point status flags and control modes. A floating-point status flag is a system variable
whose value is set (but never cleared) when a floating-point exception is raised, which occurs as a side effect of exceptional floating-
point arithmetic to provide auxiliary information. A floating-point control mode is a system variable whose value may be set by the user
to affect the subsequent behavior of floating-point arithmetic; on HP 9000 and HP Integrity servers the control modes include the rounding
direction mode, the gradual/flush-to-zero underflow mode, and the trap enables.
For HP-UX 11i v3 September 2008 Update (and later) for Integrity servers, the floating-point environment also includes the rounding direc-
tion mode for decimal floating point, which is independent of the rounding direction mode for binary floating point. Both binary and deci-
mal floating point use the same status flags.
The following types are defined:
Represents the entire floating-point environment.
Represents the floating-point exception flags collectively.
The following macros represent the floating-point status flags. They are defined as integral constant expressions with values such that
bitwise ORs of all combinations of the macros result in distinct values.
The inexact exception.
The division-by-zero exception.
The underflow exception.
The overflow exception.
The invalid operation exception.
The bitwise OR of all exception macros.
The following macros represent the rounding direction modes for binary floating point. They are defined as integral constant expressions
with distinct nonnegative values.
The round-to-nearest rounding direction mode.
The round-toward-positive-infinity rounding direction mode.
The round-toward-negative-infinity rounding direction mode.
The round-toward-zero rounding direction mode.
The following macro is defined as a pointer to const-qualified
The default floating-point environment.
To the ISO/IEC C99 specified facilities, the HP implementation adds four HP-specific functions: and
For HP-UX 11i v3 September 2008 Update (and later) for Integrity servers, included in a compilation where has been defined, this file
defines the following macros representing the rounding direction modes for decimal floating point. They are for use with the and functions.
They are defined as integral constant expressions with distinct nonnegative values.
The round-to-nearest decimal rounding direction mode with ties
(half-way cases) to even.
The round-toward-positive-infinity decimal rounding direction mode.
The round-toward-negative-infinity decimal rounding direction mode.
The round-toward-zero decimal rounding direction mode.
The round-to-nearest decimal rounding direction mode with ties
(half-way cases) away from zero.
To use any of the types or macros for decimal floating point, define either with a compile option, or with
in the source file before inclusion of
FILES SEE ALSO fe_dec_getround(3M), fe_dec_setround(3M), feclearexcept(3M), fegetexceptflag(3M), feraiseexcept(3M), fesetexceptflag(3M), fetestexcept(3M),
fegetround(3M), fesetround(3M), fegetenv(3M), feholdexcept(3M), fesetenv(3M), feupdateenv(3M), fegetflushtozero(3M), fesetflushtozero(3M),
fegettrapenable(3M), fesettrapenable(3M), math(5).
STANDARDS CONFORMANCE
: ISO/IEC C99 (including Annex F, "IEC 60559 floating-point arithmetic"), ISO/IEC TR 24732
fenv(5)