Update app.py

app.py

@@ -1,116 +1,43 @@
 import streamlit as st
 
 def add(a, b):
-    if not isinstance(a, (int, float)) or not isinstance(b, (int, float)):
-        return "Invalid input: Please enter only numbers."
     return a + b
 
 def subtract(a, b):
-    if not isinstance(a, (int, float)) or not isinstance(b, (int, float)):
-        return "Invalid input: Please enter only numbers."
     return a - b
 
 def multiply(a, b):
-    if not isinstance(a, (int, float)) or not isinstance(b, (int, float)):
-        return "Invalid input: Please enter only numbers."
     return a * b
 
 def divide(a, b):
-    if not isinstance(a, (int, float)) or not isinstance(b, (int, float)):
-        return "Invalid input: Please enter only numbers."
     if b == 0:
         return "Error: Division by zero"
     return a / b
 
-def exponentiation(a, b):
-    if not isinstance(a, (int, float)) or not isinstance(b, (int, float)):
-        return "Invalid input: Please enter only numbers."
-    return a ** b
+st.title("Functional Calculator")
 
-def square_root(a):
-    if not isinstance(a, (int, float)):
-        return "Invalid input: Please enter only numbers."
-    if a < 0:
-        return "Error: Square root of negative number not possible."
-    return a ** 0.5
-
-st.title("Advanced Functional Calculator")
-
-# Clear layout using columns
 col1, col2 = st.columns(2)
 
-# Input fields
+# Display input fields
 first_number = col1.number_input("Enter first number", key="first_number")
-second_number = col2.number_input("Enter second number (optional)", key="second_number")
+second_number = col2.number_input("Enter second number", key="second_number")
 
-# Buttons with descriptions
+# Create buttons with clear and concise labels
 add_button = st.button("Add", key="add_button")
 subtract_button = st.button("Subtract", key="subtract_button")
 multiply_button = st.button("Multiply", key="multiply_button")
 divide_button = st.button("Divide", key="divide_button")
-exp_button = st.button("Exponentiation", key="exp_button")
-sqrt_button = st.button("Square Root", key="sqrt_button")
 
-# Robust input validation and calculation based on buttons
+# Perform calculations based on button clicks
 if add_button:
     result = add(first_number, second_number)
-    if isinstance(result, str):  # Display error message if validation failed
-        st.error(result)
-    else:
-        st.write("Result:", result)
+    st.write("Result:", result)
 elif subtract_button:
     result = subtract(first_number, second_number)
-    if isinstance(result, str):
-        st.error(result)
-    else:
-        st.write("Result:", result)
+    st.write("Result:", result)
 elif multiply_button:
     result = multiply(first_number, second_number)
-    if isinstance(result, str):
-        st.error(result)
-    else:
-        st.write("Result:", result)
+    st.write("Result:", result)
 elif divide_button:
     result = divide(first_number, second_number)
-    if isinstance(result, str):
-        st.error(result)
-    else:
-        st.write("Result:", result)
-elif exp_button:
-    result = exponentiation(first_number, second_number)
-    if isinstance(result, str):
-        st.error(result)
-    else:
-        st.write("Result:", result)
-elif sqrt_button:
-    result = square_root(first_number)
-    if isinstance(result, str):
-        st.error(result)
-    else:
-        st.write("Result:", result)
-
-# History using SessionState
-session_state = st.session_state
-if "calc_history" not in session_state:
-    session_state.calc_history = []
-
-# Update history on each calculation
-if result and not isinstance(result, str):
-    session_state.calc_history.append(f"{first_number} {add_button.text if add_button else '', subtract_button.text if subtract_button else '', multiply_button.text if multiply_button else '', divide_button.text if divide_button else '', exp_button.text if exp_button else '', sqrt_button.text if sqrt_button else ''} {second_number} = {result}")
-
-# Display history
-if session_state.calc_history:
-    st.subheader("Calculation History:")
-    for entry in session_state.calc_history:
-        st.write(entry)
-
-# Customization options
-st.subheader("Customization:")
-font_size = st.number_input("Font size", min_value=10, max_value=20, value=16, key="font_size")
-st.write("Current font size:", font_size)
-primary_color = st.color_picker("Primary color", key="primary_color")
-st.write("Current primary color:", primary_color)
-
-# Update layout based on customization
-st.markdown(f"<style>.stApp {{ font-size: {font_size}px; color: {primary_color}; }}</style>", unsafe_allow_html=True)
-
+    st.write("Result:", result)