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ruby / usr / share / ri / 2.2.0 / system / Prime / cdesc-Prime.ri
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U:RDoc::NormalClass[iI"
Prime:ET@I"Object;To:RDoc::Markup::Document:@parts[o;;[o:RDoc::Markup::Paragraph;[I""The set of all prime numbers.;To:RDoc::Markup::BlankLineS:RDoc::Markup::Heading:
leveli:	textI"Example;T@o:RDoc::Markup::Verbatim;[I" Prime.each(100) do |prime|
;TI"-  p prime  #=> 2, 3, 5, 7, 11, ...., 97
;TI"	end
;T:@format0o;	;[I"Prime is Enumerable:;T@o;;[I")Prime.first 5 # => [2, 3, 5, 7, 11]
;T;0S;;i;
I"Retrieving the instance;T@o;	;[I"O+Prime+.new is obsolete. Now +Prime+ has the default instance and you can ;TI"#access it as +Prime+.instance.;T@o;	;[I"OFor convenience, each instance method of +Prime+.instance can be accessed ;TI""as a class method of +Prime+.;T@o;	;[I"	e.g.;To;;[I"(Prime.instance.prime?(2)  #=> true
;TI"(Prime.prime?(2)           #=> true
;T;0S;;i;
I"Generators;T@o;	;[	I"JA "generator" provides an implementation of enumerating pseudo-prime ;TI"Knumbers and it remembers the position of enumeration and upper bound. ;TI"KFurthermore, it is an external iterator of prime enumeration which is ;TI"#compatible with an Enumerator.;T@o;	;[I"G+Prime+::+PseudoPrimeGenerator+ is the base class for generators. ;TI"0There are few implementations of generator.;T@o:RDoc::Markup::List:
@type:
LABEL:@items[o:RDoc::Markup::ListItem:@label[I"%+Prime+::+EratosthenesGenerator+;T;[o;	;[I"Uses eratosthenes' sieve.;To;;[I"&+Prime+::+TrialDivisionGenerator+;T;[o;	;[I"$Uses the trial division method.;To;;[I"+Prime+::+Generator23+;T;[o;	;[
I"OGenerates all positive integers which are not divisible by either 2 or 3. ;TI"DThis sequence is very bad as a pseudo-prime sequence. But this ;TI"His faster and uses much less memory than the other generators. So, ;TI"Fit is suitable for factorizing an integer which is not large but ;TI"4has many prime factors. e.g. for Prime#prime? .;T:
@fileI"lib/prime.rb;T:0@omit_headings_from_table_of_contents_below0;0;0[[[[I"Enumerable;To;;[;@V;0I"lib/prime.rb;T[[I"
class;T[[:public[[I"
instance;F@^[I"new;T@^[:protected[[:private[[I"
instance;T[[;[	[I"	each;F@^[I"int_from_prime_division;F@^[I"prime?;F@^[I"prime_division;F@^[;[[;[[[I"OldCompatibility;To;;[;@V;0@^[I"Forwardable;To;;[;@V;0@^[U:RDoc::Context::Section[i0o;;[;0;0[@V@VcRDoc::TopLevel