# -*- 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 copy
from decimal import Decimal
from mathmaker.lib import shared
from mathmaker.lib.tools import fix_math_style2_fontsize
from mathmaker.lib.core.base_calculus import Item, Fraction
from mathmaker.lib.document.content import component
[docs]class sub_object(component.structure):
def __init__(self, **options):
self.preset = options.get('preset', 'default')
self.decimal_representation = \
Decimal(str(options.get('build_data')[0]))
# self.decimal_representation = \
# generate_random_decimal_nb(position=start_pos,
# width=random.choice([1, 2, 3]),
# generation_type='default',
# unique_figures=options.get(
# 'unique_figures', False),
# grow_left=True,
# **options)
self.fraction = Fraction(self.decimal_representation)
self.fraction10 = copy.deepcopy(self.fraction)
self.fraction10.set_numerator(
Item(self.fraction.numerator.evaluate() * 10))
self.fraction10.set_denominator(
Item(self.fraction.denominator.evaluate() * 10))
directions = {'left': 'to_decimal', 'right': 'to_fraction'}
self.direction = options.get('direction',
directions[
next(shared.alternate_source)[0]])
self.transduration = 8
[docs] def q(self, **options):
# This is actually meant for self.preset == 'mental calculation'
if self.direction == 'to_decimal':
result = _('What is {} as a decimal?') \
.format(fix_math_style2_fontsize(
shared.machine.write_math_style2(
self.fraction.printed)))
else:
result = _('What is {} as a decimal fraction?') \
.format(shared.machine.write_math_style2(
Item(self.decimal_representation).printed))
return result
[docs] def a(self, **options):
if self.direction == 'to_decimal':
return shared.machine.write_math_style2(
Item(self.decimal_representation).printed)
else:
return fix_math_style2_fontsize(_('{} (or {} etc.)').format(
shared.machine.write_math_style2(self.fraction.printed),
shared.machine.write_math_style2(self.fraction10.printed)))
[docs] def js_a(self, **kwargs):
if self.direction == 'to_decimal':
return [Item(self.decimal_representation).jsprinted]
else:
f = self.fraction.jsprinted
return [f, 'any_decimal_fraction == ' + f]