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Versions: 129
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Stored size: 920 Bytes
Contents
class ComplexNumber
attr_reader :real, :imaginary
def initialize(real, imaginary = 0)
@real = real
@imaginary = imaginary
end
def ==(other)
(self - other).abs < 1e-15
end
def +(other)
self.class.new(@real + other.real, @imaginary + other.imaginary)
end
def -(other)
self.class.new(@real - other.real, @imaginary - other.imaginary)
end
def *(other)
self.class.new(@real * other.real - @imaginary * other.imaginary,
@real * other.imaginary + @imaginary * other.real)
end
def /(other)
self*other.inv
end
def abs
Math.sqrt((self*self.conjugate).real)
end
def conjugate
self.class.new(@real, -@imaginary)
end
def inv
self.class.new(@real / abs**2, -@imaginary / abs**2)
end
def exp
self.class.new(Math.exp(@real)) * self.class.new(Math.cos(@imaginary), Math.sin(@imaginary))
end
end
module BookKeeping
VERSION = 1
end
Version data entries
129 entries across 129 versions & 1 rubygems