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• alphabetical_order_cmp() : core.root_calculus.Evaluable
• answer_to_str() : sheet.exercise.question.Q_AlgebraExpressionExpansion.Q_AlgebraExpressionExpansion , sheet.exercise.question.Q_Calculation.Q_Calculation , sheet.exercise.question.Q_Model.Q_Model , sheet.exercise.question.Q_RightTriangle.Q_RightTriangle , sheet.exercise.question.Q_Equation.Q_Equation , sheet.exercise.question.Q_Structure.Q_Structure , sheet.exercise.question.Q_AlgebraExpressionReduction.Q_AlgebraExpressionReduction , sheet.exercise.question.Q_MentalCalculation.Q_MentalCalculation , sheet.exercise.question.Q_Factorization.Q_Factorization
• answers_title_to_str() : sheet.S_Structure.S_Structure
• append() : core.base_calculus.CommutativeOperation
• auto_expansion_and_reduction() : core.calculus.Expression
• auto_resolution() : core.calculus.Equation