Hi Monks, I'm a total newbie to perl, please be gentle on me. :-) (I'm reading Learning Perl at the moment.) I'm trying to fill an array with numeric data to use in my program, but 'warnings' say: 
Argument "42 32 22" isn't numeric in multiplication (*) at ./multigear
+.pl line 19, <STDIN> line 3.
Argument "11 13 15 17 19 21" isn't numeric in division (/) at ./multig
+ear.pl line 19, <STDIN> line 3.
Use of uninitialized value in division (/) at ./multigear.pl line 20, 
+<STDIN> line 3.
Illegal division by zero at ./multigear.pl line 20, <STDIN> line 3.

[download]
Below is my program, (which I will try to build & use nested loops in, when I can get it functioning). 
#!/usr/bin/perl
use strict;
use warnings;

print "\nMulti Gear Calculator\n\n";
print "Enter Wheelsize (inches): ";
my $wheel = <STDIN>;
#my $wheel = 26.5;
chomp$wheel;
print "Enter Chainwheel Teeth: ";
my @chwhs = (<STDIN>);
###my $line;
###while($line = <STDIN>) { chomp $line; last unless $line =~ /\d/; pu
+sh @chwhs, $line }
#my @chwhs = qw (42 32 22);
chomp@chwhs;
print "Enter Cog Teeth: ";
my @cogs = (<STDIN>);
#my @cogs = qw (11 13 15 17 19 21 24 28 32);
chomp@cogs;

my $gear1 = $wheel*$chwhs[0]/$cogs[0];
my $gear2 = $wheel*$chwhs[0]/$cogs[1];
my $gear3 = $wheel*$chwhs[0]/$cogs[2];
my $gear4 = $wheel*$chwhs[0]/$cogs[3];
my $gear5 = $wheel*$chwhs[0]/$cogs[4];
my $gear6 = $wheel*$chwhs[0]/$cogs[5];
my $gear7 = $wheel*$chwhs[0]/$cogs[6];
my $gear8 = $wheel*$chwhs[0]/$cogs[7];
my $gear9 = $wheel*$chwhs[0]/$cogs[8];

my $gear10 = $wheel*$chwhs[1]/$cogs[0];
my $gear11 = $wheel*$chwhs[1]/$cogs[1];
my $gear12 = $wheel*$chwhs[1]/$cogs[2];
my $gear13 = $wheel*$chwhs[1]/$cogs[3];
my $gear14 = $wheel*$chwhs[1]/$cogs[4];
my $gear15 = $wheel*$chwhs[1]/$cogs[5];
my $gear16 = $wheel*$chwhs[1]/$cogs[6];
my $gear17 = $wheel*$chwhs[1]/$cogs[7];
my $gear18 = $wheel*$chwhs[1]/$cogs[8];

my $gear19 = $wheel*$chwhs[2]/$cogs[0];
my $gear20 = $wheel*$chwhs[2]/$cogs[1];
my $gear21 = $wheel*$chwhs[2]/$cogs[2];
my $gear22 = $wheel*$chwhs[2]/$cogs[3];
my $gear23 = $wheel*$chwhs[2]/$cogs[4];
my $gear24 = $wheel*$chwhs[2]/$cogs[5];
my $gear25 = $wheel*$chwhs[2]/$cogs[6];
my $gear26 = $wheel*$chwhs[2]/$cogs[7];
my $gear27 = $wheel*$chwhs[2]/$cogs[8];

my @gear1 = ($gear1, $gear2, $gear3, $gear4, $gear5, $gear6, $gear7, $
+gear8, $gear9);
my @gear2 = ($gear10, $gear11, $gear12, $gear13, $gear14, $gear15, $ge
+ar16, $gear17, $gear18);
my @gear3 = ($gear19, $gear20, $gear21, $gear22, $gear23, $gear24, $ge
+ar25, $gear26, $gear27);

print "\nYour gears are:\n\n";
print "\nYour gears are:\n\n";

print "Wheelsize: $wheel\n"; 
print "Chainwheels: @chwhs\n";
print "Sprockets: @cogs\n\n";
print "@gear1\n\n";
print "@gear2\n\n";
print "@gear3\n\n";

[download]
This program should calculate cycle gear ratios from input entered from the keyboard. I have tried different ways to get the data, to no avail. Using data coded into the program, everything works fine. Can someone please point out my mistake(s).

In reply to I'm trying to get a numeric array by fatmac

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