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Full Discussion: Float array sum
Top Forums Shell Programming and Scripting Float array sum Post 302881575 by berveglieri on Monday 30th of December 2013 10:31:45 AM
Old 12-30-2013
Linux Float array sum
Hi everyone,

I'm having some trouble with float array.
When i try to get the array sum with float numbers i get this error line 39: soma + 2.34 | bc: syntax error: invalid arithmetic operator (error token is ".34 | bc")

Code:
 26 Somar() {
 27 echo "Quantos numeros deseja somar?"
 28 read numeros
 29 vetorSoma[$numeros]=" "
 30 for (( i=0;i<$numeros;i++ ))
 31 do
 32 con=$((con+1))
 33 echo -n "digite o $conš numero: "  
 34 read vetorSoma[$i]
 35 done
 36 
 37 for i in ${vetorSoma[@]}; do
 38 sum=0
 39 soma=$((soma + $i | bc))
 40 done
 41 echo "O resultado foi $soma"
 42 }

when i type int numbers it works great, i just don't know why.
Thx.
 

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LEARN ABOUT SUNOS

sum

sum(1B) 					     SunOS/BSD Compatibility Package Commands						   sum(1B)

NAME

       sum - calculate a checksum for a file

SYNOPSIS

       /usr/ucb/sum file...

DESCRIPTION

       sum  calculates	and  displays a 16-bit checksum for the named file and displays the size of the file in kilobytes. It is typically used to
       look for bad spots, or to validate a file communicated over some transmission line. The checksum is calculated by an  algorithm	which  may
       yield different results on machines with 16-bit ints and machines with 32-bit ints, so it cannot always be used to validate that a file has
       been transferred between machines with different-sized ints.

USAGE

       See largefile(5) for the description of the behavior of sum when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       sum(1), wc(1), attributes(5), largefile(5)

DIAGNOSTICS

       Read error is indistinguishable from EOF on most devices; check the block count.

NOTES

       sum and /usr/bin/sum (see sum(1)) return different checksums.

       This utility is obsolete.

SunOS 5.10							    8 Nov 1995								   sum(1B)
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