Class: EquationValue

Inherits:
Equation show all
Defined in:
lib/symcalc.rb

Overview

Implements basic numeric values as the Equation class

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Equation

#*, #**, #+, #-, #/, #__simplify__, #coerce, #derivative, #eval, #inspect, #simplify, #to_s

Constructor Details

#initialize(value) ⇒ EquationValue

Returns a new instance of EquationValue.



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# File 'lib/symcalc.rb', line 226

def initialize(value)
  @value = value
end

Instance Attribute Details

#value ⇒ Object

Returns the value of attribute value.



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# File 'lib/symcalc.rb', line 224

def value
  @value
end

Instance Method Details

#==(value) ⇒ Object 



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# File 'lib/symcalc.rb', line 242

def ==(value)
  if value.is_a? EquationValue
    return @value == value.value
  else
    return false
  end
end

#__derivative__(variable: nil) ⇒ Object 



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# File 'lib/symcalc.rb', line 238

def __derivative__ variable: nil
  return EquationValue.new 0
end

#__eval__(var_hash) ⇒ Object 



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# File 'lib/symcalc.rb', line 234

def __eval__ var_hash
  return @value.to_f
end

#__get_m_elements__(var_hash) ⇒ Object 



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# File 'lib/symcalc.rb', line 259

def __get_m_elements__ var_hash
  if var_hash.keys.include? self
    var_hash[self] = var_hash[self] + 1
  else
    var_hash[self] = 1
  end
  return var_hash
end

#all_variables ⇒ Object 



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# File 'lib/symcalc.rb', line 269

def all_variables
  []
end

#display ⇒ Object 



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# File 'lib/symcalc.rb', line 230

def display
  return @value.to_s
end

#eql?(obj) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/symcalc.rb', line 254

def eql? obj
  return false if !obj.is_a? EquationValue
  return obj.value == @value
end

#hash ⇒ Object 



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# File 'lib/symcalc.rb', line 250

def hash
  1111000 + @value
end