= mint-lib

== Description:

An utilities that is used by Mint.

== Classes:

== Mint::Expression
This class represents an expression.

  expression = Mint::Expression.new('5 div 4', expression_tree)
  p expression.to_s #=> '5 div 4'
  p expression.to_maxima #=> '5 / 4'
  p expression.to_latex #=> '5 \div 4'
  p expression.normalize #=> '5 div 4'

== Mint::Builder
This class builds expression from string.

  input = Readline.readline('>')
  begine
    answer = Mint::Builder.build(input)
    p answer.class
    #=> Mint::Expression
  rescue
    puts 'Please check your answer.'
  end

== Mint::Generator
Problem generator.

=== Factory
Factory generates problem generator.

  Mint::Generator::Factory.create(:ordinary_arithmetic)
  #=> #<Mint::Generator::OrdinaryArithmetic>

* Base
  * ArithmeticBase
    * OrdinaryArithmetic
    * DecimalArithmetic
    * FractionalArithmetic
    * FractionalExpressionArithmetic
  * High_orderExpression_base
    * Factorization
    * Expansion
  * PartialFractionExpansion

== Mint::Solver
Problem solver.

  Mint::Solver.set_engine Mint::Solver::Engine::Arithmetic
  Mint::Solver.solve('1 + 1')
  #=> 2

=== Maxima
Use Maxima to solve problem.

===== Factory
Factory generates problem solver.

  Mint::Solver::Maxima::Factory.create(:ordinary_arithmetic)
  #=> #<Mint::Solver::Maxima::OrdinaryArithmetic>

* Base
  * ArithmeticBase
    * OrdinaryArithmetic
    * DecimalArithmetic
    * FractionalArithmetic
    * FractionalExpressionArithmetic
  * High_orderExpression_base
    * Factorization
    * Expansion
  * PartialFractionExpansion