in my code i use .gcd method to find greatest common divisor of two int.
like i= 12.gcd 44
puts i
but it says "not defined method"
···
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Posted via http://www.ruby-forum.com/.
hazal Ates wrote:
in my code i use .gcd method to find greatest common divisor of two int.
like i= 12.gcd 44
puts ibut it says "not defined method"
note : its not work in irb , too.
···
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Posted via http://www.ruby-forum.com/\.
Without the "like" before i= (which I assume doesn't belong to your program
since it produces a syntax error) your code works correctly for me with ruby
1.8.7-p302.
Stefano
···
On Wednesday 08 September 2010, hazal Ates wrote:
>in my code i use .gcd method to find greatest common divisor of two int.
>
>like i= 12.gcd 44
>puts i
>
>but it says "not defined method"
Stefano Crocco wrote:
>in my code i use .gcd method to find greatest common divisor of two int.
>
>like i= 12.gcd 44
>puts i
>
>but it says "not defined method"Without the "like" before i= (which I assume doesn't belong to your
program
since it produces a syntax error) your code works correctly for me with
ruby
1.8.7-p302.Stefano
thank you, but of course i wrote the code without "like".
irb output as below ;
irb(main):001:0> 12.gcd 44
NoMethodError: undefined method `gcd' for 12:Fixnum
from (irb):1
···
On Wednesday 08 September 2010, hazal Ates wrote:
from :0
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Posted via http://www.ruby-forum.com/\.
You're right. In ruby 1.8.7 the gcd method is defined in rational.rb, which is
part of the standard library. To make your program work you simply have to
require it. The reason it worked for me is that this file is automatically
required on my system when starting irb.
I hope this helps
Stefano
···
On Wednesday 08 September 2010, hazal Ates wrote:
>Stefano Crocco wrote:
>> On Wednesday 08 September 2010, hazal Ates wrote:
>>> >in my code i use .gcd method to find greatest common divisor of two
>>> >int.
>>> >
>>> >like i= 12.gcd 44
>>> >puts i
>>> >
>>> >but it says "not defined method"
>>
>> Without the "like" before i= (which I assume doesn't belong to your
>> program
>> since it produces a syntax error) your code works correctly for me with
>> ruby
>> 1.8.7-p302.
>>
>> Stefano
>
>thank you, but of course i wrote the code without "like".
>irb output as below ;
>irb(main):001:0> 12.gcd 44
>NoMethodError: undefined method `gcd' for 12:Fixnum
> from (irb):1
> from :0
You're right. In ruby 1.8.7 the gcd method is defined in rational.rb,
which is
part of the standard library. To make your program work you simply have
to
require it. The reason it worked for me is that this file is
automatically
required on my system when starting irb.I hope this helps
Stefano
thanks but now another problem :
when i wrote : Rational ( 26,65 ) it gives syntax error 
ruby ratio.rb
ratio.rb:1: syntax error, unexpected ',', expecting ')'
Rational (6 , 10)
^
Exit code: 1
normally it must give : (2/5)
···
--
Posted via http://www.ruby-forum.com/\.
thanks but now another problem :
when i wrote : Rational ( 26,65 ) it gives syntax error
ruby ratio.rb
ratio.rb:1: syntax error, unexpected ',', expecting ')'
Rational (6 , 10)
^Exit code: 1
normally it must give : (2/5)
ok i just solve it by writing like :
Rational (26),(65) -------> 2/5
···
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This is strange. It works for me. An attempt I'd do is to remove the space
between Rational and the parentheses. Ruby behaviour when you put a space
before a parentheses can be unintuitive (if calling ruby with the -w switch,
it should give a warning about it).
Stefano
···
On Thursday 09 September 2010, hazal Ates wrote:
>> You're right. In ruby 1.8.7 the gcd method is defined in rational.rb,
>> which is
>> part of the standard library. To make your program work you simply have
>> to
>> require it. The reason it worked for me is that this file is
>> automatically
>> required on my system when starting irb.
>>
>> I hope this helps
>>
>> Stefano
>
>thanks but now another problem :
>
>when i wrote : Rational ( 26,65 ) it gives syntax error
>
>>ruby ratio.rb
>
>ratio.rb:1: syntax error, unexpected ',', expecting ')'
>Rational (6 , 10)
> ^
>
>>Exit code: 1
>
>normally it must give : (2/5)
marvin@ikarus:~$ irb
irb(main):001:0> RUBY_DESCRIPTION
=> "ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-linux]"
irb(main):002:0> Rational (6 , 10)
SyntaxError: (irb):2: syntax error, unexpected ',', expecting ')'
Rational (6 , 10)
^
from /opt/rubies/ruby-1.9.2-p0/bin/irb:12:in `<main>'
irb(main):003:0> exit
marvin@ikarus:~$ irb18 -rrational
irb(main):001:0> RUBY_DESCRIPTION
=> "ruby 1.8.7 (2010-06-23 patchlevel 299) [x86_64-linux]"
irb(main):002:0> Rational (6, 10)
(irb):2: warning: don't put space before argument parentheses
=> Rational(3, 5)
irb(main):003:0> exit
marvin@ikarus:~$
Vale,
Marvin
···
Am 09.09.2010 14:43, schrieb Stefano Crocco:
On Thursday 09 September 2010, hazal Ates wrote:
>> You're right. In ruby 1.8.7 the gcd method is defined in rational.rb,
>> which is
>> part of the standard library. To make your program work you simply have
>> to
>> require it. The reason it worked for me is that this file is
>> automatically
>> required on my system when starting irb.
>>
>> I hope this helps
>>
>> Stefano
>
>thanks but now another problem :
>
>when i wrote : Rational ( 26,65 ) it gives syntax error
>
>>ruby ratio.rb
>
>ratio.rb:1: syntax error, unexpected ',', expecting ')'
>Rational (6 , 10)
> ^
>
>>Exit code: 1
>
>normally it must give : (2/5)This is strange. It works for me. An attempt I'd do is to remove the space
between Rational and the parentheses. Ruby behaviour when you put a space
before a parentheses can be unintuitive (if calling ruby with the -w switch,
it should give a warning about it).Stefano