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d35afe2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | import streamlit as st
import math
# Initialize history in session state
if "history" not in st.session_state:
st.session_state.history = []
st.set_page_config(page_title="Advanced Calculator", page_icon="🧮")
st.title("🧮 Advanced Calculator")
st.write("Select an operation from the menu below.")
# Menu
operation = st.selectbox(
"Choose an operation",
(
"Addition",
"Subtraction",
"Multiplication",
"Division",
"Power (x^y)",
"Modulus",
"Square Root",
"Percentage",
"Floor Division"
)
)
# Two-number operations
if operation != "Square Root":
num1 = st.number_input("Enter first number", value=0.0)
num2 = st.number_input("Enter second number", value=0.0)
else:
num = st.number_input("Enter number", value=0.0)
if st.button("Calculate"):
if operation == "Addition":
result = num1 + num2
output = f"{num1} + {num2} = {result}"
elif operation == "Subtraction":
result = num1 - num2
output = f"{num1} - {num2} = {result}"
elif operation == "Multiplication":
result = num1 * num2
output = f"{num1} × {num2} = {result}"
elif operation == "Division":
if num2 != 0:
result = num1 / num2
output = f"{num1} ÷ {num2} = {result}"
else:
output = "❌ Error! Division by zero."
elif operation == "Power (x^y)":
result = num1 ** num2
output = f"{num1} ^ {num2} = {result}"
elif operation == "Modulus":
result = num1 % num2
output = f"{num1} % {num2} = {result}"
elif operation == "Percentage":
if num2 != 0:
result = (num1 / num2) * 100
output = f"{num1} is {result}% of {num2}"
else:
output = "❌ Error! Cannot divide by zero."
elif operation == "Floor Division":
if num2 != 0:
result = num1 // num2
output = f"{num1} // {num2} = {result}"
else:
output = "❌ Error! Division by zero."
elif operation == "Square Root":
if num >= 0:
result = math.sqrt(num)
output = f"√{num} = {result}"
else:
output = "❌ Error! Cannot take square root of negative number."
st.success(output)
st.session_state.history.append(output)
# History Section
st.subheader("📜 Calculation History")
if st.session_state.history:
for item in st.session_state.history:
st.write(item)
else:
st.write("No calculations yet.")
# Clear History Button
if st.button("Clear History"):
st.session_state.history = []
st.success("History Cleared!")
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