# -*- coding: utf-8 -*-
# Mathmaker creates automatically maths exercises sheets
# with their answers
# Copyright 2006-2017 Nicolas Hainaux <nh.techn@gmail.com>
# This file is part of Mathmaker.
# Mathmaker is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# any later version.
# Mathmaker is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with Mathmaker; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import random
from mathmaker.lib import shared
from mathmaker.lib.constants.latex import COLORED_QUESTION_MARK
from mathmaker.lib.document.content import component
[docs]class sub_object(component.structure):
def __init__(self, build_data, **options):
"""
:param build_data: data used to build the question, in the form of a
triple of numbers (a, b, c). Question will be "Calculate a × N"
(or N × a) where N = 10×b + c.
:type build_data: tuple
"""
super().setup("minimal", **options)
super().setup("numbers", nb=build_data, **options)
# super().setup("nb_variants", nb=build_data, **options)
self.transduration = 30
n1 = self.nb1
n2 = 10 * self.nb2 + self.nb3
factors = [n1, n2]
random.shuffle(factors)
self.product_str = r' \times '.join([factors.pop().printed,
factors.pop().printed])
self.answer = n1 * n2
[docs] def q(self, **options):
self.substitutable_question_mark = True
return _('{math_expr} = {q_mark}').format(
math_expr=shared.machine.write_math_style2(self.product_str),
q_mark=COLORED_QUESTION_MARK)
[docs] def a(self, **options):
# This is actually meant for self.preset == 'mental calculation'
return self.answer.printed
[docs] def js_a(self, **kwargs):
return [self.answer.uiprinted]