Create app.py

app.py

@@ -1,29 +1,77 @@
 import streamlit as st
+import math
+
+# Custom styling using Markdown
+st.markdown(
+    """
+    <style>
+    .main {
+        background-color: #f0f4f8;
+    }
+    .stButton>button {
+        color: white;
+        background-color: #4CAF50;
+        font-size: 16px;
+        border-radius: 10px;
+        padding: 10px 24px;
+    }
+    .stSelectbox, .stNumberInput {
+        background-color: #ffffff;
+    }
+    </style>
+    """,
+    unsafe_allow_html=True
+)
 
 # Title
-st.title("Simple Calculator App")
+st.markdown("<h1 style='color: #3366cc; text-align: center;'>Advanced Calculator</h1>", unsafe_allow_html=True)
 
 # Input fields
-num1 = st.number_input("Enter first number", format="%.2f")
-num2 = st.number_input("Enter second number", format="%.2f")
+num1 = st.number_input("Enter First Number", format="%.4f")
+num2 = st.number_input("Enter Second Number", format="%.4f")
+
+# Operation choices
+operations = [
+    "Add", "Subtract", "Multiply", "Divide",
+    "Power", "Modulus", "Square Root (1st Number)", "Logarithm (1st Number)"
+]
 
-# Operation selection
-operation = st.selectbox("Select operation", ["Add", "Subtract", "Multiply", "Divide"])
+operation = st.selectbox("Choose Operation", operations)
 
-# Calculate and display result
+# Calculate button
 if st.button("Calculate"):
-    if operation == "Add":
-        result = num1 + num2
-        st.success(f"Result: {result}")
-    elif operation == "Subtract":
-        result = num1 - num2
-        st.success(f"Result: {result}")
-    elif operation == "Multiply":
-        result = num1 * num2
-        st.success(f"Result: {result}")
-    elif operation == "Divide":
-        if num2 != 0:
-            result = num1 / num2
-            st.success(f"Result: {result}")
-        else:
-            st.error("Cannot divide by zero")
+    try:
+        if operation == "Add":
+            result = num1 + num2
+        elif operation == "Subtract":
+            result = num1 - num2
+        elif operation == "Multiply":
+            result = num1 * num2
+        elif operation == "Divide":
+            if num2 != 0:
+                result = num1 / num2
+            else:
+                st.error("❌ Cannot divide by zero!")
+                result = None
+        elif operation == "Power":
+            result = num1 ** num2
+        elif operation == "Modulus":
+            result = num1 % num2
+        elif operation == "Square Root (1st Number)":
+            if num1 >= 0:
+                result = math.sqrt(num1)
+            else:
+                st.error("❌ Cannot take square root of a negative number!")
+                result = None
+        elif operation == "Logarithm (1st Number)":
+            if num1 > 0:
+                result = math.log(num1)
+            else:
+                st.error("❌ Logarithm undefined for 0 or negative numbers!")
+                result = None
+
+        if result is not None:
+            st.success(f"✅ Result: {result:.4f}")
+
+    except Exception as e:
+        st.error(f"⚠️ Error: {str(e)}")