Class: Vector

Inherits:
Object
  • Object
show all
Defined in:
lib/rtl/vector.rb

Instance Method Summary collapse

Constructor Details

#initialize(x = nil, y = nil) ⇒ Vector

Returns a new instance of Vector.



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# File 'lib/rtl/vector.rb', line 2

def initialize x=nil,y=nil
  @array=[x,y]
end

Instance Method Details

#+(other) ⇒ Object 



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# File 'lib/rtl/vector.rb', line 38

def +(other)
  res=Vector.new
  @array.each_with_index do |e,i|
    res[i]=e + other[i]
  end
  return res
end

#[](idx) ⇒ Object 



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# File 'lib/rtl/vector.rb', line 30

def [](idx)
  @array[idx]
end

#[]=(idx, val) ⇒ Object 



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# File 'lib/rtl/vector.rb', line 34

def []=(idx,val)
  @array[idx]=val
end

#first ⇒ Object 



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# File 'lib/rtl/vector.rb', line 22

def first
  @array.first
end

#last ⇒ Object 



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# File 'lib/rtl/vector.rb', line 26

def last
  @array.last
end

#scale(int) ⇒ Object 



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# File 'lib/rtl/vector.rb', line 46

def scale int
  res=Vector.new
  @array.each_with_index do |e,i|
    res[i]=e*int
  end
  return res
end

#squared ⇒ Object 



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# File 'lib/rtl/vector.rb', line 54

def squared
  res=0
  @array.each do |e|
    res+=e*e
  end
  return res
end

#to_s ⇒ Object 



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# File 'lib/rtl/vector.rb', line 62

def to_s
  "[#{@array.join(',')}]"
end

#x ⇒ Object 



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# File 'lib/rtl/vector.rb', line 6

def x
  return @array[0]
end

#x=(v) ⇒ Object 



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# File 'lib/rtl/vector.rb', line 14

def x=(v)
  @array[0]=v
end

#y ⇒ Object 



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# File 'lib/rtl/vector.rb', line 10

def y
  return @array[1]
end

#y=(v) ⇒ Object 



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# File 'lib/rtl/vector.rb', line 18

def y=(v)
  @array[1]=v
end