Create app.py

app.py

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+import streamlit as st
+import math
+
+st.set_page_config(page_title="Advanced Calculator", page_icon="🧮")
+
+st.title("🧮 Advanced Calculator")
+st.write("Built with Streamlit for Hugging Face Spaces 🚀")
+
+# Initialize history
+if "history" not in st.session_state:
+    st.session_state.history = []
+
+operation = st.selectbox(
+    "Choose an operation",
+    [
+        "Addition",
+        "Subtraction",
+        "Multiplication",
+        "Division",
+        "Power",
+        "Modulus",
+        "Square Root",
+        "Sin",
+        "Cos",
+        "Tan",
+    ],
+)
+
+def calculate(op, a=None, b=None):
+    if op == "Addition":
+        return a + b
+    elif op == "Subtraction":
+        return a - b
+    elif op == "Multiplication":
+        return a * b
+    elif op == "Division":
+        if b == 0:
+            return "❌ Division by zero"
+        return a / b
+    elif op == "Power":
+        return a ** b
+    elif op == "Modulus":
+        return a % b
+    elif op == "Square Root":
+        if a < 0:
+            return "❌ Negative number"
+        return math.sqrt(a)
+    elif op == "Sin":
+        return math.sin(math.radians(a))
+    elif op == "Cos":
+        return math.cos(math.radians(a))
+    elif op == "Tan":
+        return math.tan(math.radians(a))
+
+# Input fields
+if operation in ["Square Root", "Sin", "Cos", "Tan"]:
+    num1 = st.number_input("Enter number / angle (degrees)", value=0.0)
+    if st.button("Calculate"):
+        result = calculate(operation, num1)
+        st.success(f"Result: {result}")
+        st.session_state.history.append(f"{operation}({num1}) = {result}")
+else:
+    num1 = st.number_input("Enter first number", value=0.0)
+    num2 = st.number_input("Enter second number", value=0.0)
+    if st.button("Calculate"):
+        result = calculate(operation, num1, num2)
+        st.success(f"Result: {result}")
+        st.session_state.history.append(
+            f"{operation}({num1}, {num2}) = {result}"
+        )
+
+st.markdown("---")
+st.subheader("📜 Calculation History")
+
+if st.session_state.history:
+    for item in reversed(st.session_state.history):
+        st.write(item)
+else:
+    st.write("No calculations yet.")