Aufgabengenerierung für ungleichnamige Brüche und Neuentwurf

This commit is contained in:
Martin Putzlocher 2024-12-01 18:57:12 +01:00
parent 087f1d7af1
commit dd5e8c7286
5 changed files with 748 additions and 0 deletions

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import random
from math import gcd
import xml.etree.ElementTree as ET
def lcm(a, b):
"""Berechnet das kleinste gemeinsame Vielfache."""
return abs(a * b) // gcd(a, b)
def create_formula_question(numerator1, denominator1, numerator2, denominator2, n):
"""Erzeugt eine Frage im Format 'Formulas'."""
# GCD und das kleinste gemeinsame Vielfache für die Denominator
common_denominator = lcm(denominator1, denominator2)
new_numerator = (numerator1 * (common_denominator // denominator1)) + (numerator2 * (common_denominator // denominator2))
gcd_result = gcd(new_numerator, common_denominator)
if gcd_result > 1:
print("kürzbar")
shortable = True
shortened_numerator = new_numerator // gcd_result
shortened_denominator = common_denominator // gcd_result
else:
shortable = False
question = ET.Element('question', attrib={'type': 'formulas'})
name_elem = ET.SubElement(question, 'name')
text_elem = ET.SubElement(name_elem, 'text')
text_elem.text = 'Addition von 2 ungleichnamigen Brüchen {} E'.format(n)
questiontext_elem = ET.SubElement(question, 'questiontext', attrib={'format': 'html'})
text_elem = ET.SubElement(questiontext_elem, 'text')
if shortable:
text_elem.text = '''<![CDATA[ <p>Addiere die Brüche und kürze das Ergebnis so weit wie möglich.</p>
<p>{#A} </p> ]]> '''
else:
text_elem.text = '''<![CDATA[ <p>Addiere die beiden Brüche.</p>
<p>{#A} </p> ]]> '''
# Allgemeines Feedback
generalfeedback_elem = ET.SubElement(question, 'generalfeedback', attrib={'format': 'html'})
text_elem = ET.SubElement(generalfeedback_elem, 'text')
text_elem.text = ' '
# Grundlegende Bewertungsinformationen
ET.SubElement(question, 'defaultgrade').text = '1.0000000'
ET.SubElement(question, 'penalty').text = '0.3333333'
ET.SubElement(question, 'hidden').text = '0'
ET.SubElement(question, 'idnumber').text = ' '
# Feedback für korrekte und inkorrekte Antworten
correctfeedback_elem = ET.SubElement(question, 'correctfeedback', attrib={'format': 'html'})
text_elem = ET.SubElement(correctfeedback_elem, 'text')
text_elem.text = '''<![CDATA[ <p>Die Antwort ist richtig.</p> ]]> '''
partiallycorrectfeedback_elem = ET.SubElement(question, 'partiallycorrectfeedback', attrib={'format': 'html'})
text_elem = ET.SubElement(partiallycorrectfeedback_elem, 'text')
text_elem.text = '''<![CDATA[ <p>Die Antwort ist teilweise richtig.</p> ]]> '''
incorrectfeedback_elem = ET.SubElement(question, 'incorrectfeedback', attrib={'format': 'html'})
text_elem = ET.SubElement(incorrectfeedback_elem, 'text')
text_elem.text = '''<![CDATA[ <p>Die Antwort ist falsch.</p> ]]>'''
ET.SubElement(question, 'shownumcorrect')
varsrandom_elem = ET.SubElement(question, 'varsrandom')
text_elem = ET.SubElement(varsrandom_elem, 'text')
text_elem.text = f' '
# Globale Variablen definieren
varsglobal_elem = ET.SubElement(question, 'varsglobal')
text_elem = ET.SubElement(varsglobal_elem, 'text')
text_elem.text = f'n = [{numerator1}, {numerator2}];\n d = [{denominator1}, {denominator2}];'
answernumbering_elem = ET.SubElement(question, 'answernumbering')
text_elem = ET.SubElement(answernumbering_elem, 'text')
text_elem.text = 'ABCD'
# Antworten definieren
answers_elem = ET.SubElement(question, 'answers')
# Indizes für die Antworten
partindex_elem = ET.SubElement(answers_elem, 'partindex')
ET.SubElement(partindex_elem, 'text').text = '0'
placeholder_elem = ET.SubElement(answers_elem, 'placeholder')
ET.SubElement(placeholder_elem, 'text').text = '#A'
# Punktzahl auf Teilaufgabe
answermark_elem = ET.SubElement(answers_elem, 'answermark')
if shortable:
ET.SubElement(answermark_elem, 'text').text = '2'
else:
ET.SubElement(answermark_elem, 'text').text = '1'
answertype_elem = ET.SubElement(answers_elem, 'answertype')
ET.SubElement(answertype_elem, 'text').text = '0'
numbox_elem = ET.SubElement(answers_elem, 'numbox')
ET.SubElement(numbox_elem, 'text').text = '2'
# Berechnungsvariablen
vars1_elem = ET.SubElement(answers_elem, 'vars1')
if shortable:
vars1_elem_text = "<![CDATA[ g = gcd(d[0],d[1]);\n cd = abs(d[0] * d[1]) / g;\n e = [cd / d[0], cd / d[1]];\n nums = [n[0]*e[0], n[1]*e[1]];\n thesumnum = nums[0] + nums[1];\n gcdres = gcd(thesumnum,cd);\n snum = thesumnum / gcdres;\n sdenom = cd / gcdres;]]>"
else:
vars1_elem_text = "<![CDATA[ g = gcd(d[0],d[1]);\ncd = abs(d[0] * d[1]) / g;\ne = [cd / d[0], cd / d[1]];\nnums = [n[0]*e[0], n[1]*e[1]];\nthesumnum = nums[0] + nums[1];]]>"
ET.SubElement(vars1_elem, 'text').text = vars1_elem_text
# Antwort
answer_elem = ET.SubElement(answers_elem, 'answer')
if shortable:
answer_text = '[thesumnum, cd, snum, sdenom]'
else:
answer_text = '[thesumnum, cd]'
ET.SubElement(answer_elem, 'text').text = answer_text
answernotunique_elem = ET.SubElement(answers_elem, 'answernotunique')
ET.SubElement(answernotunique_elem, 'text').text = '0'
vars2_elem = ET.SubElement(answers_elem, 'vars2')
if shortable:
vars2_elem_text = "<![CDATA[ ga = _0 == thesumnum && _1 == cd;\n gb = (_0 / _1) == (thesumnum / cd);\n gsa = _2 == snum && _3 == sdenom;\n gsb = (_2 / _3) == (snum / sdenom); ]]>"
else:
vars2_elem_text = "<![CDATA[ ga = _0 == thesumnum && _1 == cd; gb = (_0 / _1) == (thesumnum / cd); ]]>"
ET.SubElement(vars2_elem, 'text').text = vars2_elem_text
correctness_elem = ET.SubElement(answers_elem, 'correctness')
if shortable:
ET.SubElement(correctness_elem, 'text').text = '0.25*ga + 0.25*gb + 0.25*gsa + 0.25*gsb'
else:
ET.SubElement(correctness_elem, 'text').text = '0.5*ga + 0.5*gb'
unitpenalty_elem = ET.SubElement(answers_elem, 'unitpenalty')
ET.SubElement(unitpenalty_elem, 'text').text = '1'
postunit_elem = ET.SubElement(answers_elem, 'postunit')
ET.SubElement(postunit_elem, 'text').text = ' '
ruleid_elem = ET.SubElement(answers_elem, 'ruleid')
ET.SubElement(ruleid_elem, 'text').text = '1'
otherrule_elem = ET.SubElement(answers_elem, 'otherrule')
ET.SubElement(otherrule_elem, 'text').text = ' '
# Unterfragen-Text
subqtext_elem = ET.SubElement(answers_elem, 'subqtext', attrib={'format': 'html'})
if shortable:
sub_question_text = '''<![CDATA[ <p>Berechne:</p> <p>\\(\\Large \\displaystyle \\frac{{n[0]}}{{d[0]}} + \\frac{{n[1]}}{{d[1]}} =\\) {_0} / {_1} = gekürzt: {_2} / {_3}</p> ]]> '''
else:
sub_question_text = '''<![CDATA[ <p>Berechne:</p> <p>\\(\\Large \\displaystyle \\frac{{n[0]}}{{d[0]}} + \\frac{{n[1]}}{{d[1]}} =\\) {_0} / {_1}</p> ]]> '''
ET.SubElement(subqtext_elem, 'text').text = sub_question_text
# Lösungshinweis
feedback_elem = ET.SubElement(answers_elem, 'feedback', attrib={'format': 'html'})
if shortable:
feedback_text = '''<![CDATA[ <h4>Lösungshinweis</h4>
<p>Die korrekte Lösung ist:</p>
<p>\\(\\Large \\displaystyle \\frac{{n[0]}}{{d[0]}} + \\frac{{n[1]}}{{d[1]}} = \\frac{{nums[0]}}{{cd}} + \\frac{{nums[1]}}{{cd}} = \\frac{{thesumnum}}{{cd}} = \\frac{{snum}}{{sdenom}} \\) </p> ]]>'''
else:
feedback_text = '''<![CDATA[ <h4>Lösungshinweis</h4>
<p>Die korrekte Lösung ist:</p>
<p>\\(\\Large \\displaystyle \\frac{{n[0]}}{{d[0]}} + \\frac{{n[1]}}{{d[1]}} = \\frac{{nums[0]}}{{cd}} + \\frac{{nums[1]}}{{cd}} = \\frac{{thesumnum}}{{cd}} \\) </p> ]]>'''
ET.SubElement(feedback_elem, 'text').text = feedback_text
# correctfeedback
correctfeedback_elem = ET.SubElement(answers_elem, 'correctfeedback', attrib={'format': 'html'})
correctfeedback_text = '''<![CDATA[ <p>Richtig!</p>]]>'''
ET.SubElement(correctfeedback_elem, 'text').text = correctfeedback_text
# partially correct feedback
pcorrectfeedback_elem = ET.SubElement(answers_elem, 'partiallycorrectfeedback', attrib={'format': 'html'})
pcorrectfeedback_text = '''<![CDATA[ <p>Teilweise richtig.</p>]]>'''
ET.SubElement(pcorrectfeedback_elem, 'text').text = pcorrectfeedback_text
# incorrect feedback
incorrectfeedback_elem = ET.SubElement(answers_elem, 'incorrectfeedback', attrib={'format': 'html'})
incorrectfeedback_text = '''<![CDATA[ <p>Leider nicht richtig.</p>]]>'''
ET.SubElement(incorrectfeedback_elem, 'text').text = incorrectfeedback_text
return question
def generate_questions(num_questions):
"""Generiert Aufgaben für die Addition ungleichnamiger Brüche."""
questions = []
for i in range(num_questions):
numerator1 = random.randint(1, 10)
denominator1 = random.randint(2, 10)
numerator2 = random.randint(1, 10)
denominator2 = random.randint(2, 10)
# Sicherstellen, dass die Nenner unterschiedlich sind
while denominator1 == denominator2:
denominator2 = random.randint(2, 10)
question = create_formula_question(numerator1, denominator1, numerator2, denominator2, i)
questions.append(question)
return questions
def create_quiz(questions):
"""Erzeugt die gesamte Quiz-Struktur."""
quiz = ET.Element('quiz')
for q in questions:
quiz.append(q)
return quiz
def save_to_file(xml_element, filename):
"""Speichert das XML-Dokument in einer Datei."""
tree = ET.ElementTree(xml_element)
ET.indent(tree)
with open(filename, 'wb') as f:
tree.write(f, encoding='utf-8', xml_declaration=True)
def ersetze_vars2(xml_file):
# XML-Datei lesen
with open(xml_file, 'r') as f:
text = f.read()
text = text.replace("&amp;","&")
text = text.replace("&lt;","<")
text = text.replace("&gt;",">")
with open(xml_file, 'w') as f:
f.write(text)
# Hauptprogramm
if __name__ == "__main__":
num_questions = 20 # Anzahl der zu generierenden Aufgaben
questions = generate_questions(num_questions)
quiz = create_quiz(questions)
save_to_file(quiz, 'formulas_fraction_addition_quiz.xml')
ersetze_vars2('formulas_fraction_addition_quiz.xml')
print("Moodle-XML-Datei 'formulas_fraction_addition_quiz.xml' erfolgreich erstellt.")

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import random
from math import gcd
import xml.etree.ElementTree as ET
def lcm(a, b):
"""Berechnet das kleinste gemeinsame Vielfache."""
return abs(a * b) // gcd(a, b)
def create_formula_question(numerator1, denominator1, numerator2, denominator2, n):
"""Erzeugt eine Frage im Format 'Formulas'."""
# GCD und das kleinste gemeinsame Vielfache für die Denominator
common_denominator = lcm(denominator1, denominator2)
new_numerator = (numerator1 * (common_denominator // denominator1)) - (numerator2 * (common_denominator // denominator2))
gcd_result = gcd(new_numerator, common_denominator)
if gcd_result > 1:
print("kürzbar")
shortable = True
shortened_numerator = new_numerator // gcd_result
shortened_denominator = common_denominator // gcd_result
else:
shortable = False
question = ET.Element('question', attrib={'type': 'formulas'})
name_elem = ET.SubElement(question, 'name')
text_elem = ET.SubElement(name_elem, 'text')
text_elem.text = 'Subtraktion von 2 ungleichnamigen Brüchen {} E'.format(n)
questiontext_elem = ET.SubElement(question, 'questiontext', attrib={'format': 'html'})
text_elem = ET.SubElement(questiontext_elem, 'text')
if shortable:
text_elem.text = '''<![CDATA[ <p>Subtrahiere die Brüche und kürze das Ergebnis so weit wie möglich.</p>
<p>{#A} </p> ]]> '''
else:
text_elem.text = '''<![CDATA[ <p>Subtrahiere die beiden Brüche.</p>
<p>{#A} </p> ]]> '''
# Allgemeines Feedback
generalfeedback_elem = ET.SubElement(question, 'generalfeedback', attrib={'format': 'html'})
text_elem = ET.SubElement(generalfeedback_elem, 'text')
text_elem.text = ' '
# Grundlegende Bewertungsinformationen
ET.SubElement(question, 'defaultgrade').text = '1.0000000'
ET.SubElement(question, 'penalty').text = '0.3333333'
ET.SubElement(question, 'hidden').text = '0'
ET.SubElement(question, 'idnumber').text = ' '
# Feedback für korrekte und inkorrekte Antworten
correctfeedback_elem = ET.SubElement(question, 'correctfeedback', attrib={'format': 'html'})
text_elem = ET.SubElement(correctfeedback_elem, 'text')
text_elem.text = '''<![CDATA[ <p>Die Antwort ist richtig.</p> ]]> '''
partiallycorrectfeedback_elem = ET.SubElement(question, 'partiallycorrectfeedback', attrib={'format': 'html'})
text_elem = ET.SubElement(partiallycorrectfeedback_elem, 'text')
text_elem.text = '''<![CDATA[ <p>Die Antwort ist teilweise richtig.</p> ]]> '''
incorrectfeedback_elem = ET.SubElement(question, 'incorrectfeedback', attrib={'format': 'html'})
text_elem = ET.SubElement(incorrectfeedback_elem, 'text')
text_elem.text = '''<![CDATA[ <p>Die Antwort ist falsch.</p> ]]>'''
ET.SubElement(question, 'shownumcorrect')
varsrandom_elem = ET.SubElement(question, 'varsrandom')
text_elem = ET.SubElement(varsrandom_elem, 'text')
text_elem.text = f' '
# Globale Variablen definieren
varsglobal_elem = ET.SubElement(question, 'varsglobal')
text_elem = ET.SubElement(varsglobal_elem, 'text')
text_elem.text = f'n = [{numerator1}, {numerator2}];\n d = [{denominator1}, {denominator2}];'
answernumbering_elem = ET.SubElement(question, 'answernumbering')
text_elem = ET.SubElement(answernumbering_elem, 'text')
text_elem.text = 'ABCD'
# Antworten definieren
answers_elem = ET.SubElement(question, 'answers')
# Indizes für die Antworten
partindex_elem = ET.SubElement(answers_elem, 'partindex')
ET.SubElement(partindex_elem, 'text').text = '0'
placeholder_elem = ET.SubElement(answers_elem, 'placeholder')
ET.SubElement(placeholder_elem, 'text').text = '#A'
# Punktzahl auf Teilaufgabe
answermark_elem = ET.SubElement(answers_elem, 'answermark')
if shortable:
ET.SubElement(answermark_elem, 'text').text = '2'
else:
ET.SubElement(answermark_elem, 'text').text = '1'
answertype_elem = ET.SubElement(answers_elem, 'answertype')
ET.SubElement(answertype_elem, 'text').text = '0'
numbox_elem = ET.SubElement(answers_elem, 'numbox')
ET.SubElement(numbox_elem, 'text').text = '2'
# Berechnungsvariablen
vars1_elem = ET.SubElement(answers_elem, 'vars1')
if shortable:
vars1_elem_text = "<![CDATA[ g = gcd(d[0],d[1]);\n cd = abs(d[0] * d[1]) / g;\n e = [cd / d[0], cd / d[1]];\n nums = [n[0]*e[0], n[1]*e[1]];\n thesumnum = nums[0] - nums[1];\n gcdres = gcd(thesumnum,cd);\n snum = thesumnum / gcdres;\n sdenom = cd / gcdres;]]>"
else:
vars1_elem_text = "<![CDATA[ g = gcd(d[0],d[1]);\ncd = abs(d[0] * d[1]) / g;\ne = [cd / d[0], cd / d[1]];\nnums = [n[0]*e[0], n[1]*e[1]];\nthesumnum = nums[0] - nums[1];]]>"
ET.SubElement(vars1_elem, 'text').text = vars1_elem_text
# Antwort
answer_elem = ET.SubElement(answers_elem, 'answer')
if shortable:
answer_text = '[thesumnum, cd, snum, sdenom]'
else:
answer_text = '[thesumnum, cd]'
ET.SubElement(answer_elem, 'text').text = answer_text
answernotunique_elem = ET.SubElement(answers_elem, 'answernotunique')
ET.SubElement(answernotunique_elem, 'text').text = '0'
vars2_elem = ET.SubElement(answers_elem, 'vars2')
if shortable:
vars2_elem_text = "<![CDATA[ ga = _0 == thesumnum && _1 == cd;\n gb = (_0 / _1) == (thesumnum / cd);\n gsa = _2 == snum && _3 == sdenom;\n gsb = (_2 / _3) == (snum / sdenom); ]]>"
else:
vars2_elem_text = "<![CDATA[ ga = _0 == thesumnum && _1 == cd; gb = (_0 / _1) == (thesumnum / cd); ]]>"
ET.SubElement(vars2_elem, 'text').text = vars2_elem_text
correctness_elem = ET.SubElement(answers_elem, 'correctness')
if shortable:
ET.SubElement(correctness_elem, 'text').text = '0.25*ga + 0.25*gb + 0.25*gsa + 0.25*gsb'
else:
ET.SubElement(correctness_elem, 'text').text = '0.5*ga + 0.5*gb'
unitpenalty_elem = ET.SubElement(answers_elem, 'unitpenalty')
ET.SubElement(unitpenalty_elem, 'text').text = '1'
postunit_elem = ET.SubElement(answers_elem, 'postunit')
ET.SubElement(postunit_elem, 'text').text = ' '
ruleid_elem = ET.SubElement(answers_elem, 'ruleid')
ET.SubElement(ruleid_elem, 'text').text = '1'
otherrule_elem = ET.SubElement(answers_elem, 'otherrule')
ET.SubElement(otherrule_elem, 'text').text = ' '
# Unterfragen-Text
subqtext_elem = ET.SubElement(answers_elem, 'subqtext', attrib={'format': 'html'})
if shortable:
sub_question_text = '''<![CDATA[ <p>Berechne:</p> <p>\\(\\Large \\displaystyle \\frac{{n[0]}}{{d[0]}} - \\frac{{n[1]}}{{d[1]}} =\\) {_0} / {_1} = gekürzt: {_2} / {_3}</p> ]]> '''
else:
sub_question_text = '''<![CDATA[ <p>Berechne:</p> <p>\\(\\Large \\displaystyle \\frac{{n[0]}}{{d[0]}} - \\frac{{n[1]}}{{d[1]}} =\\) {_0} / {_1}</p> ]]> '''
ET.SubElement(subqtext_elem, 'text').text = sub_question_text
# Lösungshinweis
feedback_elem = ET.SubElement(answers_elem, 'feedback', attrib={'format': 'html'})
if shortable:
feedback_text = '''<![CDATA[ <h4>Lösungshinweis</h4>
<p>Die korrekte Lösung ist:</p>
<p>\\(\\Large \\displaystyle \\frac{{n[0]}}{{d[0]}} - \\frac{{n[1]}}{{d[1]}} = \\frac{{nums[0]}}{{cd}} - \\frac{{nums[1]}}{{cd}} = \\frac{{thesumnum}}{{cd}} = \\frac{{snum}}{{sdenom}} \\) </p> ]]>'''
else:
feedback_text = '''<![CDATA[ <h4>Lösungshinweis</h4>
<p>Die korrekte Lösung ist:</p>
<p>\\(\\Large \\displaystyle \\frac{{n[0]}}{{d[0]}} - \\frac{{n[1]}}{{d[1]}} = \\frac{{nums[0]}}{{cd}} - \\frac{{nums[1]}}{{cd}} = \\frac{{thesumnum}}{{cd}} \\) </p> ]]>'''
ET.SubElement(feedback_elem, 'text').text = feedback_text
# correctfeedback
correctfeedback_elem = ET.SubElement(answers_elem, 'correctfeedback', attrib={'format': 'html'})
correctfeedback_text = '''<![CDATA[ <p>Richtig!</p>]]>'''
ET.SubElement(correctfeedback_elem, 'text').text = correctfeedback_text
# partially correct feedback
pcorrectfeedback_elem = ET.SubElement(answers_elem, 'partiallycorrectfeedback', attrib={'format': 'html'})
pcorrectfeedback_text = '''<![CDATA[ <p>Teilweise richtig.</p>]]>'''
ET.SubElement(pcorrectfeedback_elem, 'text').text = pcorrectfeedback_text
# incorrect feedback
incorrectfeedback_elem = ET.SubElement(answers_elem, 'incorrectfeedback', attrib={'format': 'html'})
incorrectfeedback_text = '''<![CDATA[ <p>Leider nicht richtig.</p>]]>'''
ET.SubElement(incorrectfeedback_elem, 'text').text = incorrectfeedback_text
return question
def generate_questions(num_questions):
"""Generiert Aufgaben für die Addition ungleichnamiger Brüche."""
questions = []
for i in range(num_questions):
numerator1 = random.randint(1, 10)
denominator1 = random.randint(2, 10)
numerator2 = random.randint(1, 10)
denominator2 = random.randint(2, 10)
# Sicherstellen, dass die Nenner unterschiedlich sind
while denominator1 == denominator2:
denominator2 = random.randint(2, 10)
question = create_formula_question(numerator1, denominator1, numerator2, denominator2, i)
questions.append(question)
return questions
def create_quiz(questions):
"""Erzeugt die gesamte Quiz-Struktur."""
quiz = ET.Element('quiz')
for q in questions:
quiz.append(q)
return quiz
def save_to_file(xml_element, filename):
"""Speichert das XML-Dokument in einer Datei."""
tree = ET.ElementTree(xml_element)
ET.indent(tree)
with open(filename, 'wb') as f:
tree.write(f, encoding='utf-8', xml_declaration=True)
def ersetze_vars2(xml_file):
# XML-Datei lesen
with open(xml_file, 'r') as f:
text = f.read()
text = text.replace("&amp;","&")
text = text.replace("&lt;","<")
text = text.replace("&gt;",">")
with open(xml_file, 'w') as f:
f.write(text)
# Hauptprogramm
if __name__ == "__main__":
num_questions = 20 # Anzahl der zu generierenden Aufgaben
questions = generate_questions(num_questions)
quiz = create_quiz(questions)
save_to_file(quiz, 'formulas_fraction_addition_quiz.xml')
ersetze_vars2('formulas_fraction_addition_quiz.xml')
print("Moodle-XML-Datei 'formulas_fraction_addition_quiz.xml' erfolgreich erstellt.")

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import random
from math import gcd, lcm
import xml.etree.ElementTree as ET
from collections import Counter
# Konstanten
# Anzahl der zu generierenden Fragen.
NUM_QUESTIONS = 1
# Algebraische Struktur der Aufgaben
STRUCTURE = "-(+)"
# TODO
# Platzhalter hinzufügen
# Anzahl der benötigten Brüche
NUM_FRACTIONS = 1 + STRUCTURE.count("+") + STRUCTURE.count("+") + STRUCTURE.count("*") + STRUCTURE.count("/")
# Größter Zähler
MAX_NUMERATOR = 20
# Größter Nenner
MAX_DENOMINATOR = 20
# Größter erlaubter gemeinsamer Nenner
MAX_COMMON_DENOMINATOR = 100
# Dateiname für Ausgabe
FILENAME = 'formulas_new_quiz.xml'
def create_formula_question(n):
numerators = []
denominators = []
for i in range(NUM_FRACTIONS):
n = random.randint(1, MAX_NUMERATOR)
d = random.randint(2, MAX_DENOMINATOR)
numerators.append(n)
denominators.append(d)
# Sicherstellen, dass die Nenner unterschiedlich sind
same_denominators = [k for k,v in Counter(denominators).items() if v>1]
while len(same_denominators) > 1:
new_denom = random.randint(2, MAX_DENOMINATOR)
denominators.replace(same_denominators[0], new_denom)
same_denominators = [k for k,v in Counter(denominators).items() if v>1]
# [DEBUG]
print(numerators)
print(denominators)
# [DEBUG]
*denoms_integers, = denominators
common_denominator = lcm(*denoms_integers)
fractions = []
for i in range(NUM_FRACTIONS):
fraction = {"n": numerators[i], "d": denominators[i]}
fractions.append(fraction)
# [DEBUG]
print(fractions)
# [DEBUG]
cd = common_denominator
expanded_numerators = [frac["n"] * cd // frac["d"] for frac in fractions]
expanded_fractions = []
for i in range(NUM_FRACTIONS):
fraction = {"n": expanded_numerators[i], "d": cd}
expanded_fractions.append(fraction)
# [DEBUG]
print(expanded_fractions)
# [DEBUG]
eval_string = f"{expanded_numerators[0]}"
cnt_next_fraction = 1
for c in STRUCTURE:
if c == "(" or c ==")":
eval_string += c
elif c == "+" or c == "-" or c == "*" or c == "/":
eval_string += c
eval_string += f"{expanded_numerators[cnt_next_fraction]}"
cnt_next_fraction += 1
# [DEBUG]
print(eval_string)
# [DEBUG]
result_numerator = eval(eval_string)
question = ET.Element('question', attrib={'type': 'formulas'})
return question
def generate_questions(num_questions):
"""
Generiert eine Liste von Aufgaben.
Args:
num_questions (int): Die Anzahl der zu generierenden Fragen.
Returns:
list: Eine Liste von Frage-Elementen.
"""
questions = []
for i in range(num_questions):
# Hier können Sie die Funktionsdefinition für die Erzeugung einer Aufgabe hinzufügen
questions.append(create_formula_question(i))
return questions
def create_quiz(questions):
"""
Erstellt das gesamte Quiz-Element.
Args:
questions (list): Eine Liste von Frage-Elementen.
Returns:
Element: Das gesamte Quiz -Element.
"""
quiz = ET.Element('quiz')
for q in questions:
quiz.append(q)
return quiz
def save_to_file(xml_element, filename):
"""
Speichert das XML-Dokument in eine Datei.
Args:
xml_element (Element): Das XML-Element, zu speichern.
filename (str): Der Name der Zieldatei.
Returns:
None
"""
tree = ET.ElementTree(xml_element)
with open(filename, 'wb') as f:
tree.write(f, encoding='utf_8', xml_declaration=True)
return
def replace_vars2(xml_file):
# XML-Datei lesen
with open(xml_file, 'r') as f:
text = f.read()
text = text.replace("&amp;","&")
text = text.replace("&lt;","<")
text = text.replace("&gt;",">")
with open(xml_file, 'w') as f:
f.write(text)
# Hauptprogramm
if __name__ == "__main__":
questions = generate_questions(NUM_QUESTIONS)
quiz = create_quiz(questions)
save_to_file(quiz, FILENAME)
replace_vars2(FILENAME)
print("Moodle-XMLDatei erfolgreich erstellt.")

64
expression_parsing.py Normal file
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import re
import random
import operator
# Define operators and their corresponding functions
ops = {
'+': operator.add,
'-': operator.sub,
'*': operator.mul,
'/': operator.truediv
}
def calculate(expression, num=1):
"""Calculate the result of the expression using n[0], n[1], ..."""
numbers = [random.randint(1, 10) for _ in range(num)]
print(numbers)
# Replace placeholders with actual number values
for i, num in enumerate(numbers):
placeholder = f'n{i}'
expression = re.sub(rf'\{placeholder}\s*([+-/*])', rf'{num} \1', expression)
expression = re.sub(rf'({placeholder})\s*', rf'{num}', expression)
print(expression)
# Evaluate the result
return eval(expression)
def parse_expression(expression):
"""Parse an algebraic expression and determine the required number of numbers"""
op_count = 0
# Count operators in parentheses
paren_count = 1
max_depth = 0
for i, char in enumerate(expression):
if char == '(':
paren_count += 1
elif char == ')':
paren_count -= 1
# Update max depth when a closed parenthesis is encountered
max_depth = max(max_depth, paren_count)
if char in ops.keys():
op_count += 1
return max_depth + op_count
def main():
expression = input("Enter an algebraic structure (e.g., -(+)): ")
# Handle the empty string case by providing a default expression
if not expression:
expression = 'n0-(n1+n2)'
num_needed = parse_expression(expression)
result = calculate(expression, num_needed)
print(f"Generated calculation: {expression}")
print(f"Result: {result}")
if __name__ == "__main__":
main()

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import re
import random
def calculate(expression, num=1):
"""Calculate the result of the expression using n[0], n[1], ..."""
# Generate random numbers and replace placeholders with them in the expression
numbers = [random.randint(1, 10) for _ in range(num)]
new_expression = expression
for i, num in enumerate(numbers):
placeholder = f'n[{i}]'
new_expression = re.sub(rf'\b{n[i]}(\W|$)', str(num), new_expression)
# Evaluate the result
return eval(new_expression)
def parse_expression(expression):
"""Parse an algebraic expression and determine the required number of numbers"""
count_n = 0
i = 0
for char in expression:
if char == 'n' and (i+1 < len(expression) and expression[i+1] == '['):
count_n += 1
i += 1
return count_n
def main():
expression = input("Enter an algebraic structure (e.g., -(+)): ")
# Handle the empty string case by providing a default expression
if not expression:
expression = '-(+)'
num_needed = parse_expression(expression)
result = calculate(expression, num_needed)
print(f"Generated calculation: {expression}")
print(f"Result: {result}")
if __name__ == "__main__":
main()