Add application file 4

app.py

@@ -1,38 +1,71 @@
 import streamlit as st
 import importlib
 
-# List of available modules
+# List of available modules with shorter names and icons
 module_names = {
-    "Presentation in bases 2, 10, 8, and 16": "presentation_bases",
-    "Valid or invalid numbers in each base": "valid_invalid_numbers",
-    "Conversion with and without fractions among four bases of 10, 2, 8, and 16": "conversion_bases",
-    "Using grouping techniques for conversion between 2 and 8 and 16": "grouping_techniques",
-    "Addition in base 2, 8, and 16": "addition_bases",
-    "2's complement questions": "twos_complement",
-    "Negative binary numbers": "negative_binary",
-    "Subtraction in base 2 using 2's complement method": "subtraction_bases",
+    "Bases": "presentation_bases",
+    "Validity": "valid_invalid_numbers",
+    "Conversion": "conversion_bases",
+    "Grouping": "grouping_techniques",
+    "Addition": "addition_bases",
+    "2's Complement": "twos_complement",
+    "Negative Numbers": "negative_binary",
+    "Subtraction": "subtraction_bases",
 }
 
+# Initialize session state for tracking answers and progress
+if 'correct_count' not in st.session_state:
+    st.session_state.correct_count = 0
+if 'question_count' not in st.session_state:
+    st.session_state.question_count = 0
+if 'current_module' not in st.session_state:
+    st.session_state.current_module = None
+
 # Streamlit interface
-st.sidebar.title("Multiple Choice Quiz")
-module_name = st.sidebar.radio("Choose a module:", list(module_names.keys()))
+st.sidebar.title("Quiz Modules")
+module_name = st.sidebar.radio("Choose a module:", list(module_names.keys()), index=0)
 
 if module_name:
     module_file = module_names[module_name]
     try:
         module = importlib.import_module(f'modules.{module_file}')
         generate_question = module.generate_question
-        question, options, correct_answer, explanation = generate_question()
+        title = getattr(module, 'title', f"{module_name} Module")
+        description = getattr(module, 'description', "Description is not available")
+        
+        # Show module title and description
+        st.title(title)
+        st.write(description)
         
+        # Add spacing to ensure question visibility on Hugging Face
+        st.markdown("<br><br>", unsafe_allow_html=True)
+
+        # Generate and display the question
+        question, options, correct_answer, explanation = generate_question()
         st.write(f"**Question:** {question}")
         answer = st.radio("Choose an answer:", options)
-        
+
+        # Track user's response
         if st.button("Submit"):
+            st.session_state.question_count += 1
             if answer == correct_answer:
+                st.session_state.correct_count += 1
                 st.success("Correct!", icon="✅")
-                st.write(f"**Explanation:** {explanation}")
             else:
                 st.error("Incorrect.", icon="❌")
-                st.write(f"**Explanation:** {explanation}")
+            st.write(f"**Explanation:** {explanation}")
+
+        # Option to go to the next or previous question
+        col1, col2 = st.columns(2)
+        if col1.button("Previous Question"):
+            st.experimental_rerun()  # To simulate going back (if history is managed)
+        if col2.button("Next Question"):
+            st.experimental_rerun()  # To simulate moving forward
+
+        # Show percentage of correct answers
+        if st.session_state.question_count > 0:
+            correct_percentage = (st.session_state.correct_count / st.session_state.question_count) * 100
+            st.write(f"**Correct Answers:** {st.session_state.correct_count}/{st.session_state.question_count} ({correct_percentage:.2f}%)")
+        
     except ModuleNotFoundError:
         st.error(f"The module '{module_name}' was not found. Please select another module.")

modules/addition_bases.py

@@ -1,43 +1,35 @@
 import random
 
+title = "Addition in Different Bases"
+description = "This module helps you practice adding numbers in different bases such as binary, octal, and hexadecimal."
+
 def generate_question():
-    num = random.randint(1, 100)
-    from_base = random.choice([2, 8, 10, 16])
-    to_base = random.choice([2, 8, 10, 16])
-    
-    if from_base == 10:
-        value = num
-    elif from_base == 2:
-        value = int(bin(num)[2:], 2)
-    elif from_base == 8:
-        value = int(oct(num)[2:], 8)
-    else:
-        value = int(hex(num)[2:], 16)
+    base = random.choice([2, 8, 16])
+    num1 = random.randint(1, 15)
+    num2 = random.randint(1, 15)
     
-    if to_base == 2:
-        correct_answer = bin(value)[2:]
-    elif to_base == 8:
-        correct_answer = oct(value)[2:]
-    elif to_base == 16:
-        correct_answer = hex(value)[2:]
+    if base == 2:
+        correct_answer = bin(num1 + num2)[2:]
+    elif base == 8:
+        correct_answer = oct(num1 + num2)[2:]
     else:
-        correct_answer = str(value)
+        correct_answer = hex(num1 + num2)[2:]
     
+    question = f"Add {num1} and {num2} in base {base}."
     options = [correct_answer]
     
     # Generate incorrect options
     while len(options) < 5:
-        fake_option = bin(random.randint(1, 100))[2:]
+        fake_option = bin(random.randint(1, 30))[2:]
         if fake_option not in options:
             options.append(fake_option)
     
     random.shuffle(options)
-    question = f"Convert {num} from base {from_base} to base {to_base}."
     explanation = (
-        f"The number {num} in base {from_base} is {correct_answer} in base {to_base}."
+        f"The sum of {num1} and {num2} in base {base} is {correct_answer}."
         "\n\n**Step-by-step solution:**\n"
-        "1. Convert the number from the original base to decimal if necessary.\n"
-        "2. Convert the decimal number to the target base.\n"
-        "3. The correct answer is the result of the conversion."
+        "1. Convert the numbers to decimal if necessary.\n"
+        "2. Perform the addition in decimal.\n"
+        "3. Convert the result back to the base if needed."
     )
     return question, options, correct_answer, explanation

modules/conversion_bases.py

@@ -1,5 +1,8 @@
 import random
 
+title = "Base Conversion"
+description = "This module focuses on converting numbers between different bases, including binary, octal, decimal, and hexadecimal, with and without fractions."
+
 def generate_question():
     num = random.randint(1, 100)
     from_base = random.choice([2, 8, 10, 16])

modules/grouping_techniques.py

@@ -1,5 +1,8 @@
 import random
 
+title = "Grouping Techniques for Base Conversion"
+description = "This module covers the techniques used for converting binary numbers to octal and hexadecimal by grouping bits."
+
 def generate_question():
     binary_num = bin(random.randint(1, 63))[2:]
     padded_binary = binary_num.zfill(len(binary_num) + (3 - len(binary_num) % 3) % 3)

modules/negative_binary.py

@@ -1,5 +1,8 @@
 import random
 
+title = "Negative Numbers in Binary"
+description = "This module focuses on the binary representation of negative numbers using 2's complement and other methods."
+
 def generate_question():
     num = random.randint(-8, -1)
     bit_length = 4

modules/presentation_bases.py

@@ -1,5 +1,8 @@
 import random
 
+title = "Presentation in Bases"
+description = "This module covers the representation of numbers in different bases including binary, octal, decimal, and hexadecimal."
+
 def generate_question():
     num = random.randint(1, 20)
     base = random.choice([2, 8, 10, 16])

modules/subtraction_bases.py

@@ -1,5 +1,8 @@
 import random
 
+title = "Subtraction in Base 2 Using 2's Complement"
+description = "This module teaches subtraction in binary using the 2's complement method, which allows subtraction to be performed as an addition operation."
+
 def generate_question():
     num1 = random.randint(1, 7)
     num2 = random.randint(1, 7)

modules/twos_complement.py

@@ -1,43 +1,32 @@
 import random
 
+title = "2's Complement"
+description = "This module covers the representation of numbers using the 2's complement method, which is commonly used for representing negative numbers in binary."
+
 def generate_question():
-    num = random.randint(1, 100)
-    from_base = random.choice([2, 8, 10, 16])
-    to_base = random.choice([2, 8, 10, 16])
-    
-    if from_base == 10:
-        value = num
-    elif from_base == 2:
-        value = int(bin(num)[2:], 2)
-    elif from_base == 8:
-        value = int(oct(num)[2:], 8)
-    else:
-        value = int(hex(num)[2:], 16)
-    
-    if to_base == 2:
-        correct_answer = bin(value)[2:]
-    elif to_base == 8:
-        correct_answer = oct(value)[2:]
-    elif to_base == 16:
-        correct_answer = hex(value)[2:]
+    num = random.randint(-8, 7)
+    bit_length = 4
+    if num >= 0:
+        binary = bin(num)[2:].zfill(bit_length)
     else:
-        correct_answer = str(value)
+        binary = bin((1 << bit_length) + num)[2:]
     
+    question = f"What is the 2's complement representation of {num}?"
+    correct_answer = binary
     options = [correct_answer]
     
     # Generate incorrect options
     while len(options) < 5:
-        fake_option = bin(random.randint(1, 100))[2:]
+        fake_option = bin(random.randint(-8, 7) & 0xF)[2:]
         if fake_option not in options:
             options.append(fake_option)
     
     random.shuffle(options)
-    question = f"Convert {num} from base {from_base} to base {to_base}."
     explanation = (
-        f"The number {num} in base {from_base} is {correct_answer} in base {to_base}."
+        f"The 2's complement representation of {num} is {binary}."
         "\n\n**Step-by-step solution:**\n"
-        "1. Convert the number from the original base to decimal if necessary.\n"
-        "2. Convert the decimal number to the target base.\n"
-        "3. The correct answer is the result of the conversion."
+        "1. If the number is positive, convert it to binary and pad with leading zeros to fit the bit length.\n"
+        "2. If the number is negative, take its absolute value, convert to binary, invert the digits, and add 1.\n"
+        "3. The result is the 2's complement representation."
     )
     return question, options, correct_answer, explanation

modules/valid_invalid_numbers.py

@@ -1,5 +1,8 @@
 import random
 
+title = "Validity of Numbers in Bases"
+description = "This module helps you determine whether a given number is valid or invalid in various bases like binary, octal, decimal, and hexadecimal."
+
 def generate_question():
     base = random.choice([2, 8, 10, 16])
     length = random.randint(3, 5)