absolute value


 
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# 1  
Old 08-26-2008
absolute value

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
# 2  
Old 08-26-2008
Rounding floating point numbers?

Try Perl function "sprintf".

I'd say

#!/usr/bin/perl -w
# This will round the value of Y to two decimal points, using ".2f"
$Y=14.875;
$roundedY= sprintf "%.2f", $Y;
print "$roundedY \n";
exit;

For more details look at sprintf - formatted print into a string

The same is in C and Korn in the man pages. I hope this helps.

Good luck
# 3  
Old 08-26-2008
For the absolute value (and one decimal place), you would also use Perl's abs function, e.g.:
Code:
perl -e 'printf "%.1f\n", abs(15232/1024)'

# 4  
Old 08-26-2008
bytes = int(bytes/1024)

is there any funcion similar to int for abs in ksh
 
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