Class: Ilp::Term

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby-cbc/ilp/term.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(var, mult = 1) ⇒ Term

Returns a new instance of Term.



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# File 'lib/ruby-cbc/ilp/term.rb', line 6

def initialize(var, mult = 1)
  @mult = mult
  @var = var
end

Instance Attribute Details

#mult ⇒ Object

Returns the value of attribute mult.



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# File 'lib/ruby-cbc/ilp/term.rb', line 4

def mult
  @mult
end

#var ⇒ Object

Returns the value of attribute var.



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# File 'lib/ruby-cbc/ilp/term.rb', line 4

def var
  @var
end

Instance Method Details

#*(mult) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/ruby-cbc/ilp/term.rb', line 32

def *(mult)
  raise ArgumentError, 'Argument is not numeric' unless mult.is_a? Numeric
  Ilp::Term.new(@var, @mult * mult)
end

#+(vars) ⇒ Object 



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# File 'lib/ruby-cbc/ilp/term.rb', line 11

def +(vars)
  Ilp::TermArray.new(self) + vars
end

#-(vars) ⇒ Object 



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# File 'lib/ruby-cbc/ilp/term.rb', line 15

def -(vars)
  Ilp::TermArray.new(self) - vars
end

#<=(vars) ⇒ Object 



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# File 'lib/ruby-cbc/ilp/term.rb', line 23

def <=(vars)
  Ilp::TermArray.new(self) <= vars
end

#==(vars) ⇒ Object 



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# File 'lib/ruby-cbc/ilp/term.rb', line 19

def ==(vars)
  Ilp::TermArray.new(self) == vars
end

#>=(vars) ⇒ Object 



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# File 'lib/ruby-cbc/ilp/term.rb', line 27

def >=(vars)
  Ilp::TermArray.new(self) >= vars
end

#coerce(num) ⇒ Object 



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# File 'lib/ruby-cbc/ilp/term.rb', line 37

def coerce(num)
  [Ilp::TermArray.new(self), num]
end

#to_s ⇒ Object 



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# File 'lib/ruby-cbc/ilp/term.rb', line 41

def to_s
  str = "++-"[mult <=> 0] << " "
  str << mult.abs.to_s << " " if mult != 1
  str << var.to_s
end