class Task4Serializer(TaskSerializerBase):
matrix_a = MatrixField(child=IntegerField())
class Task5Serializer(TaskSerializerBase):
equation = MatrixField(child=CharField())
class Task1Serializer(TaskSerializerBase):
coefficient_matrix = MatrixField(child=IntegerField())
constant_terms_vector = ListField(child=IntegerField())
class Answer4Serializer(AnswerSerializerBase):
result = MatrixField(child=IntegerField())
class Answer1Serializer(AnswerSerializerBase):
which_of_products = ChoiceField(['AB', 'BA'])
product = MatrixField(child=IntegerField())
class Answer2Serializer(AnswerSerializerBase):
product = MatrixField(child=IntegerField())
trace = IntegerField()