There is a ceil() function in C, but there is no utility named ceil. But, you can perform the equivalent functionality in a 1993 or later version of ksh or with awk.
Unfortunately, the code suggested by RavinderSingh13 won't work for integral values (even though it works perfectly for non-integral values).
The following should work correctly when given integral or floating point values for values into an integral value of type long integer:
which produces the output:
If you want to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk, /usr/xpg6/bin/awk, or nawk.
Last edited by Don Cragun; 01-16-2015 at 06:06 AM..
Reason: Add note for Solaris users.
This User Gave Thanks to Don Cragun For This Post:
Hi,
I am currently using tcsh
I am trying to round a decimal number to the ten-thousandths place
For instance:
1.23456 is rounded up towards 1.2346
I am not looking for truncation, but for rounding. Anyone know how to do this with awk or expr?
Thanks (2 Replies)
Anybody please help me...
Design an algorithm that accepts an input a decimal number and converts it into BCD (Binary Coded Decimal) representation. Also, draw its Flow Chart.
This is a unix qn...
plz post algorithm for that :confused: (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Design an algorithm that accepts an input a decimal number and converts it into BCD (Binary... (2 Replies)
Hi Friends,
This is my last post for today.
My input file is
chr1 100 200
chr1 123 300
chr1 300 400
chr1 420 520
chr10 132344343 132348674
When I try using this command
awk '{v=($3+$2)/2; print $0"\t"v}' 1
This is my output
chr1 100 200 150
chr1 123 300 211.5 (2 Replies)
Hi,
I wanted to round all the values in a column to nearest integer. I have multiple files with only two columns and I want to round values in column 2. e.g
input_file
A1 23.971578 A2 34.624976 A3 46.403446 A4 375 A5 1 A6 3 A7 ... (3 Replies)
Hi,
I want to convert two hexadecimal numbers to decimal using unix command line.
1cce446295197a9d6352f9f223a9b698
fc8f99ac06e88c4faf669cf366f60d
I tried using
`echo "ibase=16; $no |bc`
printf '%x\n' "1cce446295197a9d6352f9f223a9b698"
but it doesn't work for such big number it... (4 Replies)
Hi ,
seq can be 0...128
int windex = seq / 8;
int bindex = seq % 8;
unsigned char bitvalue = '\x01' << (7-bindex) ;
bpv.bitmapvalue = bitvalue;
This is the part of a program to convert decimal to bitmap value of hexadecimal.
I want this to change to convert only to... (1 Reply)
I used the below script to Sum up a field in a file based on some unique values. But the problem is when it is summing up the units, it is truncating to 2 decimals and not 6 decimals as in the input file (Input file has the units with up to 6 Decimals – Sample data below, when the units in the 2... (4 Replies)
Discussion started by: brlsubbu
4 Replies
LEARN ABOUT NETBSD
roundup2
ROUNDUP(9) BSD Kernel Developer's Manual ROUNDUP(9)NAME
roundup -- macros for counting and rounding
SYNOPSIS
#include <sys/param.h>
size
howmany(x, size);
size
roundup(x, size);
size
rounddown(x, size);
size
roundup2(x, size);
int
powerof2(x);
DESCRIPTION
The roundup() and rounddown() macros return an integer from rounding x up and down, respectively, to the next size. The howmany() macro in
turn reveals how many times size fits into x, rounding the residual up.
The roundup2() macro also rounds up, but with the assumption that size is a power of two. If x is indeed a power of two, powerof2() return
1.
RETURN VALUES
The return value is an integer from the respective operation. If x is 0, all macros except powerof2() return 0. The behavior is undefined
if size is 0.
EXAMPLES
The following example rounds the variable rx to a 32-bit boundary:
uint16_t rx;
...
rx = roundup2(rx, sizeof(uint32_t));
SEE ALSO ilog2(3), param(3), imax(9)CAVEATS
All described macros make no assumptions about the type of the parameters. These are implicitly assumed to be unsigned integers.
BSD June 1, 2011 BSD