Class

Numeric

In:

Parent:

Numeric is a built-in class on which Fixnum, Bignum, etc., are based. Here some methods are added so that all number types can be treated to some extent as Complex numbers.

Methods

angle arg conj conjugate im imag image polar real to_yaml

Public Instance methods

angle()

Alias for arg

arg()

See Complex#arg.

[Source]

    # File complex.rb, line 60
60:   def arg
61:     if self >= 0
62:       return 0
63:     else
64:       return Math::PI
65:     end
66:   end

conj()

Alias for conjugate

conjugate()

See Complex#conjugate (short answer: returns self).

[Source]

    # File complex.rb, line 79
79:   def conjugate
80:     self
81:   end

im()

Returns a Complex number (0,self).

[Source]

    # File complex.rb, line 38
38:   def im
39:     Complex(0, self)
40:   end

imag()

Alias for image

image()

The imaginary part of a complex number, i.e. 0.

[Source]

    # File complex.rb, line 52
52:   def image
53:     0
54:   end

polar()

See Complex#polar.

[Source]

    # File complex.rb, line 72
72:   def polar
73:     return abs, arg
74:   end

real()

The real part of a complex number, i.e. self.

[Source]

    # File complex.rb, line 45
45:   def real
46:     self
47:   end

to_yaml( opts = {} )

[Source]

     # File yaml/rubytypes.rb, line 356
356:         def to_yaml( opts = {} )
357:                 YAML::quick_emit( nil, opts ) do |out|
358:             str = self.to_s
359:             if str == "Infinity"
360:                 str = ".Inf"
361:             elsif str == "-Infinity"
362:                 str = "-.Inf"
363:             elsif str == "NaN"
364:                 str = ".NaN"
365:             end
366:             out.scalar( taguri, str, :plain )
367:         end
368:         end

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