Class: CAS::Equal

Inherits:
Condition show all
Defined in:
lib/functions/fnc-conditions.rb

Overview

This class is a Condition for two equal function

Instance Attribute Summary

Attributes inherited from Condition

#x, #y

Instance Method Summary collapse

Methods inherited from Condition

#args, #depend?, #diff, #initialize, #inspect, #simplify, #subs, #to_code, #to_s

Constructor Details

This class inherits a constructor from CAS::Condition

Instance Method Details

#==(op) ⇒ Object

Return true if two functions are equal, false if different

* **argument**: `CAS::Op` operator to check against for equality
* **returns**: `TrueClass` or `FalseClass`



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# File 'lib/functions/fnc-conditions.rb', line 199

def ==(op)
  CAS::Help.assert(op, CAS::Op)
  cond_f = ((@x == op.x) and (@y == op.y)) or ((@x == op.y) and (@y == op.x))
  return (cond_f and (self.class == op.class))
end

#call(fd) ⇒ Object

Function call will evaluate left and right functions to solve the relation

* **argument**: `Hash` with feed dictionary
* **returns**: `Trueclass` or `Falseclass`



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# File 'lib/functions/fnc-conditions.rb', line 189

def call(fd)
  CAS::Help.assert fd, Hash

  return (@x.call(fd) == @y.call(fd))
end

#representative ⇒ Object

Saves some required elements



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# File 'lib/functions/fnc-conditions.rb', line 179

def representative
  @cond_type, @cond_repr = "==", "≡"
  self
end