# -*- 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
# This module will ask the digit matching a particular place in a given
# decimal number.
from decimal import Decimal
from mathmakerlib.calculus import Number
from mathmaker.lib.tools.database import generate_random_decimal_nb
from mathmaker.lib.constants.numeration import DIGITSPLACES_WORDS
from mathmaker.lib.document.content import component
[docs]class sub_object(component.structure):
def __init__(self, **options):
self.preset = options.get('preset', 'default')
pos = options.get('build_data')[0]
self.chosen_deci = \
generate_random_decimal_nb(position=pos, **options)[0]
self.chosen_figure = (self.chosen_deci
% (pos * Decimal('10'))) // pos
self.chosen_deci_str = Number((self.chosen_deci)).printed
self.chosen_digitplace = pos
self.transduration = 8
[docs] def q(self, **options):
if self.preset == 'mental calculation':
result = _('Digit of {position} in {decimal_number}?')
else:
result = _('Which figure matches the {position} in the number \
{decimal_number}?')
return result.format(decimal_number=self.chosen_deci_str,
position=_(str(
DIGITSPLACES_WORDS[self.chosen_digitplace])))
[docs] def a(self, **options):
# This is actually meant for self.preset == 'mental calculation'
return self.chosen_figure
[docs] def js_a(self, **kwargs):
return [str(self.chosen_figure)]