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import streamlit as st
import numpy as np
import math
st.set_page_config(page_title="🧮 Advanced Calculator", layout="centered")
st.title("🧠 Advanced Calculator")
st.markdown("Perform advanced mathematical calculations securely and interactively.")
expression = st.text_input("Enter your expression (e.g., sin(30) + log(10) + 2^3):")
# Safe math function map
allowed_names = {
k: v for k, v in math.__dict__.items() if not k.startswith("__")
}
allowed_names.update({
'np': np,
'sqrt': np.sqrt,
'pow': pow,
'abs': abs
})
def evaluate_expression(expr):
try:
# Replace ^ with ** for Python syntax
expr = expr.replace("^", "**")
result = eval(expr, {"__builtins__": {}}, allowed_names)
return result
except Exception as e:
return f"❌ Error: {e}"
if expression:
result = evaluate_expression(expression)
st.subheader("🧾 Result:")
st.code(result, language='text')
st.markdown("---")
st.caption("Built using Streamlit | © 2025 AdvancedCalc")
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