hi all..,

I have a question.

I am currently trying to learn perl with the book: beginning perl.

I have done the first chapter and im working on the exercises of the second chapter.

In the exercises i am expected to use things that are not explained.

chomp was the first one i had to use but is not explained.

INT is the second i had to use but is not explained.

And the bitwise & operator was explained but not enough to understand the usage of it when trying to convert decimal to binary

Here is my question:

This is the Ex2_3.plx solution code to my litlle decimal to binary conversion problem: 
#!usr/bin/perl
#Ex2_3.plx
use warnings;

print "Please enter the value(less than 256) you wish to be converted 
+into binary : \n";
my $bin = <STDIN>;

chomp ($bin);

print "The binary value of $bin is : ", "\n";

#Use the bitwise and operator to determine the binary value:

print ((128&$bin)/128);
print ((64&$bin)/64);
print ((32&$bin)/32);
print ((16&$bin)/16);
print ((8&$bin)/8);
print ((4&$bin)/4);
print ((2&$bin)/2);
print ((1&$bin)/1);
print "\n";

[download]
I understand everything except this part: 
print ((128&$bin)/128);
print ((64&$bin)/64);
print ((32&$bin)/32);
print ((16&$bin)/16);
print ((8&$bin)/8);
print ((4&$bin)/4);
print ((2&$bin)/2);
print ((1&$bin)/1);
print "\n";

[download]
In the book it is not explained how this works.. I know that it works but i just cant figure out how. Can someone please explain to me how this works? I like it if i can get something to work but i love it when i get something to work and know how it works.

Thx in advance

In reply to Bitwise and operator question by Severy

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