Hello to all,
I'm working on a file that contains a series of decimal values with different precision.
I need to divide these numbers by 100 and I don't need to round.
Input file: output: I would like not to round the result and get the following output:
Thanks in advance
Last edited by vgersh99; 04-22-2020 at 11:02 AM..
Reason: code tags, please!
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 SUNOS
fesetprec
fesetprec(3M) Mathematical Library Functions fesetprec(3M)NAME
fesetprec, fegetprec - control floating point rounding precision modes
SYNOPSIS
cc [ flag... ] file... -lm [ library... ]
#include <fenv.h>
int fesetprec(int prec);
int fegetprec(void);
DESCRIPTION
The IEEE 754 standard defines rounding precision modes for systems that always deliver intermediate results to destinations in extended
double precision format. These modes allow such systems to deliver correctly rounded single and double precision results (in the absence of
underflow and overflow) with only one rounding.
The fesetprec() function sets the current rounding precision to the precision specified by prec, which must be one of the following values
defined in <fenv.h>:
FE_FLTPREC round to single precision
FE_DBLPREC round to double precision
FE_LDBLPREC round to extended double precision
The default rounding precision when a program starts is FE_LDBLPREC.
The fegetprec() function returns the current rounding precision.
RETURN VALUES
The fesetprec() function returns a non-zero value if the requested rounding precision is established and 0 otherwise.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Architecture |Intel (see below) |
|Availability |SUNWlibms |
|Interface Stability |Stable |
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
These functions are not available on SPARC systems because SPARC processors deliver intermediate results to destinations in single or dou-
ble format as determined by each floating point instruction.
SEE ALSO fegetenv(3M), fesetround(3M), attributes(5)
Numerical Computation Guide
SunOS 5.10 1 Oct 2003 fesetprec(3M)