& - FixNum - method doubt

Ruby
1

Hi All,

irb> a=12
irb> a.methods

it contains & method

So I tried like …
irb> 3&6
=> 2
irb> 3&7
=> 3
irb> 7&21
=> 5

I can’t understand how it works. Anyone help me

Thanks,
P.Raveendran

2

I am just learning Ruby but it looks like the binary intersection of the
true bits. In shorter terms a binary “and” command.
3&6=2
in binary
011&110=010

3&7=3
in binary
011&111=011

7&21=5
in binary
00111&10101=00101

Randy

3

Randall Alexander wrote:

I am just learning Ruby but it looks like the binary intersection of the
true bits. In shorter terms a binary “and” command.
3&6=2
in binary
011&110=010

3&7=3
in binary
011&111=011

7&21=5
in binary
00111&10101=00101

Randy

Hi Randy,

Thank you very much for your quick reply.

Also i need help about these methods

+@
-@
=~

Thanks in Advance,
Thanks,
P.Raveendran

4

Hi Randy,

And few more …

+@
-@
=~

[]
^
id
send

Waiting for your reply

Thanks in Advance,
Thanks,
P.Raveendran

5

And few more …

http://www.ruby-doc.org/core-1.9/classes/
http://www.ruby-doc.org/core-1.9/classes/Fixnum.html

6

Leo wrote:

And few more …

http://www.ruby-doc.org/core-1.9/classes/
http://www.ruby-doc.org/core-1.9/classes/Fixnum.html

Hi Leo,

Thanks for your reply.

I am using Ruby 1.86 so RDoc Documentation will help me.

Regards,
P.Raveendran

7

Leo wrote:

And few more …

http://www.ruby-doc.org/core-1.9/classes/
http://www.ruby-doc.org/core-1.9/classes/Fixnum.html

Hi Leo,

http://www.ruby-doc.org/core-1.9/classes/Fixnum.html also I couldn’t
find the methods like,

id
send
denominator

etc…,

Please help to me once again…

Regards,
P.Raveendran

8

2009/3/21 jazzez ravi [email protected]:

id
send
denominator

Methods that appear for instances of a particular class may be defined
in ancestors of that class (or included modules, either of the class
or its ancestors), rather than than in the class itself. In this case
id and send are Kernel methods (probably documented under
Object, rather than Kernel) and denominator is, I think, defined in
Numeric.

9

Christopher D. wrote:

2009/3/21 jazzez ravi [email protected]:

id
send
denominator

Methods that appear for instances of a particular class may be defined
in ancestors of that class (or included modules, either of the class
or its ancestors), rather than than in the class itself. In this case
id and send are Kernel methods (probably documented under
Object, rather than Kernel) and denominator is, I think, defined in
Numeric.

Hi christopher,

Yes. Finally I got exact solution.Thanks for your help.

Regards,
P.Raveendran

10

Hi all,

one small change

String :

Regards,
P.Raveendran

11

Hi All,

Methods that appear for instances of a particular class may be defined
in ancestors of that class (or included modules, either of the class
or its ancestors), rather than than in the class itself. In this case
id and send are Kernel methods (probably documented under
Object, rather than Kernel) and denominator is, I think, defined in
Numeric.

I spent more time to find the solution for all methods. So I created one
document which contains all the methods for that particular class.

Now it is available here

Fixnum:

String:

Regards,
P.Raveendran
http://raveendran.wordpress.com