Class: Complex

Inherits:
Numeric show all
Defined in:
mrbgems/mruby-complex/mrblib/complex.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Numeric

#integer?, #negative?, #nonzero?, #positive?, #zero?

Methods included from Comparable

#<, #<=, #==, #>, #>=, #between?, #clamp

Class Method Details

.polar(abs, arg = 0) ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 2

def self.polar(abs, arg = 0)
  Complex(abs * Math.cos(arg), abs * Math.sin(arg))
end

Instance Method Details

#+@ ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 14

def +@
  self
end

#-@ ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 18

def -@
  Complex(-real, -imaginary)
end

#<=>(other) ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 22

def <=>(other)
  return nil unless other.kind_of?(Numeric)
  self.to_f <=> other.to_f
rescue
  nil
end

#abs ⇒ Object Also known as: magnitude 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 29

def abs
  Math.hypot imaginary, real
end

#abs2 ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 34

def abs2
  real * real + imaginary * imaginary
end

#arg ⇒ Object Also known as: angle, phase 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 38

def arg
  Math.atan2 imaginary, real
end

#conjugate ⇒ Object Also known as: conj 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 44

def conjugate
  Complex(real, -imaginary)
end

#fdiv(numeric) ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 49

def fdiv(numeric)
  Complex(real / numeric, imaginary / numeric)
end

#inspect ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 6

def inspect
  "(#{to_s})"
end

#polar ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 53

def polar
  [abs, arg]
end

#real? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 57

def real?
  false
end

#rectangular ⇒ Object Also known as: rect 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 61

def rectangular
  [real, imaginary]
end

#to_c ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 66

def to_c
  self
end

#to_r ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 70

def to_r
  raise RangeError.new "can't convert #{to_s} into Rational" unless imaginary.zero?
  Rational(real, 1)
end

#to_s ⇒ Object 



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# File 'mrbgems/mruby-complex/mrblib/complex.rb', line 10

def to_s
  "#{real}#{'+' unless imaginary < 0}#{imaginary}#{'*' unless imaginary.finite?}i"
end