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Full Discussion: awk --> math-operation in a array
Top Forums Shell Programming and Scripting awk --> math-operation in a array Post 302866467 by Akshay Hegde on Tuesday 22nd of October 2013 04:40:59 AM
Old 10-22-2013
You are printing string find out difference here

Integer
Code:
$ a=10; b=8
$ printf "%d\n" $(echo "$a-$b" | bc)
2

Floating point
Code:
$ a=10; b=8
$ printf "%f\n" $(echo "$a-$b" | bc)
2.000000

String
Code:
$ a=10; b=8
$ printf "%s\n" "$a-$b"
10-8

print as string after calculation
Code:
$ a=10; b=8
$ printf "%s\n" $((a-b))
2

Last edited by Akshay Hegde; 10-22-2013 at 05:48 AM..
This User Gave Thanks to Akshay Hegde For This Post:
IMPe
 

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LEARN ABOUT HPUX

fdim

fdim(3M)																  fdim(3M)

NAME

       fdim(), fdimf(), fdiml(), fdimw(), fdimq() - positive difference functions

SYNOPSIS

   HP Integrity Server Only
DESCRIPTION

       The function determines the positive difference between its arguments.

   Integrity Server Only
       is a version of it takes arguments and returns a result.

       is a version of it takes arguments and returns a result.

       is an version of it takes arguments and returns an result.

       is equivalent to on HP-UX systems.

USAGE

       To  use	this function, compile either with the default option or with the and options.	To use (for Integrity servers) or compile with the
       option.	Make sure your program includes Link in the math library by specifying on the compiler or linker command line.

RETURN VALUE

       The function returns the positive difference between x and y.

       If x y, returns x y (and raises any exceptions resulting from the subtraction).

       If x y, returns +zero.

       If x or y is NaN, returns NaN.

       If both arguments are NaNs, returns NaN.

       returns a positively signed infinity in lieu of a value whose magnitude is too large, and raises the overflow and inexact exceptions.

ERRORS

       No errors are defined.

SEE ALSO

       fdim(3M), fmin(3M), math(5).

STANDARDS CONFORMANCE

       : ISO/IEC C99 (including Annex F, ``IEC 60559 floating-point arithmetic'')

																	  fdim(3M)
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