# -*- 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
from .X_Structure import X_Structure
from . import question
# Here the list of available values for the parameter x_kind='' and the
# matching x_subkind values
# Note: the bypass value allows to give the value of *x_subkind* directly to
# the matching question Constructor, bypassing the action of the present class
AVAILABLE_X_KIND_VALUES = \
{'preformatted': ['fraction_simplification', 'fractions_product',
'fractions_quotient', 'fractions_sum']
}
X_LAYOUT_UNIT = "cm"
# ---------------------- lines_nb col_widths questions
# In each list, the first number is the number of lines (or the value '?'),
# then follow the columns widths. The tuple contains the questions per cell.
# For instance, [2, 6, 6, 6], (1, 1, 1, 1, 1, 1) means 2 lines, 3 cols (widths
# 6 cm each), then 1 question per cell.
X_LAYOUTS = {'default':
{'exc': [['?', 9, 9], 'all'],
'ans': [['?', 6, 6, 6], 'all']
}
}
# ------------------------------------------------------------------------------
# --------------------------------------------------------------------------
# ------------------------------------------------------------------------------
##
# @class X_Calculation
# @brief Calculation questions (calculate: 2-(3+5)×4, simplify a fraction...)
[docs]class X_Calculation(X_Structure):
# --------------------------------------------------------------------------
##
# @brief Constructor.
# @param **options Any options
# @return One instance of exercise.Calculation
def __init__(self, x_kind='default_nothing', **options):
self.derived = True
X_Structure.__init__(self,
x_kind, AVAILABLE_X_KIND_VALUES, X_LAYOUTS,
X_LAYOUT_UNIT, **options)
# The purpose of this next line is to get the possibly modified
# value of **options
options = self.options
default_question = question.Q_Calculation
# TEXTS OF THE EXERCISE
self.text = {'exc': "",
'ans': ""
}
# alternate texts section
if self.x_kind == 'preformatted':
if self.x_subkind == 'fraction_simplification':
self.text = {'exc': _("Simplify the following fractions:"),
'ans': ""
}
elif self.x_subkind in ['fractions_product', 'fractions_quotient',
'fractions_sum']:
# __
self.text = {'exc': _("Calculate and give the result as "
"a simplified fraction:"),
'ans': ""
}
# PREFORMATTED EXERCISES
if self.x_kind == 'preformatted':
if self.x_subkind == 'fraction_simplification':
for i in range(int(self.q_nb // 2)):
q = default_question(self.x_subkind,
expression_number=i,
**options)
self.questions_list.append(q)
for i in range(self.q_nb - int(self.q_nb // 2)):
q = default_question(self.x_subkind,
expression_number=i
+ int(self.q_nb // 2),
with_ten_powers=0.3, **options)
self.questions_list.append(q)
elif self.x_subkind in ['fractions_product', 'fractions_quotient',
'fractions_sum']:
# __
for i in range(self.q_nb):
q = default_question(self.x_subkind,
expression_number=i, **options)
self.questions_list.append(q)