Class: Bignum

Inherits:

Integer

• Object
• NSObject
• NSValue
• NSNumber
• Numeric
• Integer
• Bignum

show all

Overview

Instance Method Summary (collapse)

• - %

  Returns big modulo other.

• - &

  Performs bitwise and between big and numeric.

• - *

  Multiplies big and other, returning the result.

• - **

  Raises big to the exponent power (which may be an integer, float, or anything that will coerce to a number).

• - +

  Adds big and other, returning the result.

• - -

  Subtracts other from big, returning the result.

• - -

  Unary minus (returns an integer whose value is 0-big).

• - /

  Performs division: the class of the resulting object depends on the class of numeric and on the magnitude of the result.

• - <<

  Shifts big left numeric positions (right if numeric is negative).

• - <=>

  Comparison---Returns -1, 0, or +1 depending on whether big is less than, equal to, or greater than numeric.

• - ==

  Returns true only if obj has the same value as big.

• - >>

  Shifts big right numeric positions (left if numeric is negative).

• - []

  Bit Reference---Returns the nth bit in the (assumed) binary representation of big, where big is the least significant bit.

• - ^

  Performs bitwise exclusive or between big and numeric.

• - abs

  Returns the absolute value of big.

• - coerce

  MISSING: documentation.

• - div

  Performs integer division: returns integer value.

• - divmod

  See Numeric#divmod.

• - eql?

  Returns true only if obj is a Bignum with the same value as big.

• - even?

  Returns true if big is an even number.

• - fdiv

  Returns the floating point result of dividing big by numeric.

• - hash

  Compute a hash based on the value of big.

• - modulo

  Returns big modulo other.

• - odd?

  Returns true if big is an odd number.

• - remainder

  Returns the remainder after dividing big by numeric.

• - size

  Returns the number of bytes in the machine representation of big.

• - to_f

  Converts big to a Float.

• - to_s

  Returns a string containing the representation of big radix base (2 through 36).

• - |

  Performs bitwise or between big and numeric.

• - ~

  Inverts the bits in big.

Methods inherited from Integer

#ceil, #chr, #denominator, #downto, #floor, #gcd, #gcdlcm, induced_from, #integer?, #lcm, #next, #numerator, #ord, #pred, #rationalize, #round, #succ, #times, #to_i, #to_int, #to_r, #truncate, #upto

Methods included from Precision

included, #prec, #prec_f, #prec_i

Methods inherited from Numeric

#+@, #abs2, #angle, #arg, #ceil, #class, #conj, #conjugate, #denominator, #dup, #floor, #i, #imag, #imaginary, #initialize_copy, #integer?, #magnitude, #nonzero?, #numerator, #phase, #polar, #quo, #real, #real?, #rect, #rectangular, #round, #scalar?, #singleton_method_added, #step, #to_c, #to_int, #truncate, #zero?

Methods included from Comparable

#, #, #>, #>=, #between?

Methods inherited from NSNumber

#boolValue, #charValue, #compare:, #decimalValue, #descriptionWithLocale:, #doubleValue, #floatValue, #initWithBool:, #initWithChar:, #initWithDouble:, #initWithFloat:, #initWithInt:, #initWithInteger:, #initWithLong:, #initWithLongLong:, #initWithShort:, #initWithUnsignedChar:, #initWithUnsignedInt:, #initWithUnsignedInteger:, #initWithUnsignedLong:, #initWithUnsignedLongLong:, #initWithUnsignedShort:, #intValue, #integerValue, #isEqualToNumber:, #longLongValue, #longValue, numberWithBool:, numberWithChar:, numberWithDouble:, numberWithFloat:, numberWithInt:, numberWithInteger:, numberWithLong:, numberWithLongLong:, numberWithShort:, numberWithUnsignedChar:, numberWithUnsignedInt:, numberWithUnsignedInteger:, numberWithUnsignedLong:, numberWithUnsignedLongLong:, numberWithUnsignedShort:, #objCType, #shortValue, #stringValue, #unsignedCharValue, #unsignedIntValue, #unsignedIntegerValue, #unsignedLongLongValue, #unsignedLongValue, #unsignedShortValue

Methods inherited from NSValue

#getValue:, #initWithBytes:objCType:, #isEqualToValue:, #nonretainedObjectValue, #objCType, #pointerValue, #rangeValue, value:withObjCType:, valueWithBytes:objCType:, valueWithNonretainedObject:, valueWithPointer:, valueWithRange:

Methods inherited from NSObject

#!, #!=, #!~, #===, #=~, #Rational, #__callee__, #__method__, #__send__, #__type__, `, alloc, allocWithZone:, #autoContentAccessingProxy, autoload, autoload?, autorelease_pool, #awakeAfterUsingCoder:, binding, block_given?, caller, cancelPreviousPerformRequestsWithTarget:, cancelPreviousPerformRequestsWithTarget:selector:object:, catch, class, classFallbacksForKeyedArchiver, #classForCoder, #classForKeyedArchiver, classForKeyedUnarchiver, #clone, conformsToProtocol:, #copy, copyWithZone:, #dealloc, #define_singleton_method, description, display, #doesNotRecognizeSelector:, #dup, #enum_for, #equal?, #extend, fail, #finalize, format, #forwardInvocation:, #forwardingTargetForSelector:, framework, #freeze, #frozen?, getpass, gets, global_variables, #init, initialize, #initialize_clone, #initialize_copy, #initialize_dup, #inspect, instanceMethodForSelector:, instanceMethodSignatureForSelector:, #instance_eval, #instance_exec, #instance_of?, #instance_variable_defined?, #instance_variable_get, #instance_variable_set, #instance_variables, instancesRespondToSelector:, isSubclassOfClass:, #is_a?, iterator?, #kind_of?, lambda, load, load_bridge_support_file, load_plist, local_variables, loop, #method, #methodForSelector:, #methodSignatureForSelector:, #methods, #mutableCopy, mutableCopyWithZone:, new, #nil?, open, p, #performSelector:onThread:withObject:waitUntilDone:, #performSelector:onThread:withObject:waitUntilDone:modes:, #performSelector:withObject:afterDelay:, #performSelector:withObject:afterDelay:inModes:, #performSelectorInBackground:withObject:, #performSelectorOnMainThread:withObject:waitUntilDone:, #performSelectorOnMainThread:withObject:waitUntilDone:modes:, print, printf, #private_methods, proc, #protected_methods, #public_method, #public_methods, #public_send, putc, puts, raise, rand, readline, readlines, #replacementObjectForCoder:, #replacementObjectForKeyedArchiver:, require, resolveClassMethod:, resolveInstanceMethod:, #respond_to?, #respond_to_missing?, select, #send, setVersion:, #singleton_methods, sprintf, srand, superclass, #taint, #tainted?, #tap, test, throw, #to_plist, trace_var, trap, #trust, #untaint, untrace_var, #untrust, #untrusted?, version

123456789 ** 2      #=> 15241578750190521
123456789 ** 1.2    #=> 5126464716.09932
123456789 ** -2     #=> 6.5610001194102e-17

68719476736 == 68719476736.0   #=> true

a = 9**15
50.downto(0) do |n|
  print a[n]
end

000101110110100000111000011110010100111100010111001

-1234567890987654321.abs   #=> 1234567890987654321

68719476736.eql?(68719476736.0)   #=> false

-1234567890987654321.fdiv(13731)      #=> -89910996357705.5
-1234567890987654321.fdiv(13731.24)   #=> -89909424858035.7

-1234567890987654321.remainder(13731)      #=> -6966
-1234567890987654321.remainder(13731.24)   #=> -9906.22531493148

(256**10 - 1).size   #=> 12
(256**20 - 1).size   #=> 20
(256**40 - 1).size   #=> 40

12345654321.to_s         #=> "12345654321"
12345654321.to_s(2)      #=> "1011011111110110111011110000110001"
12345654321.to_s(8)      #=> "133766736061"
12345654321.to_s(16)     #=> "2dfdbbc31"
78546939656932.to_s(36)  #=> "rubyrules"

sprintf("%X", ~0x1122334455)    #=> "..FEEDDCCBBAA"