Create app.py

app.py

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+import streamlit as st
+import math
+
+# Title of the app
+st.title("🧮 Scientific Calculator")
+
+# Description
+st.write("Perform various mathematical operations including basic arithmetic, logarithms, trigonometric functions, and more.")
+
+# Dropdown menu for operations
+operation = st.selectbox(
+    "Select an operation:",
+    [
+        "Addition",
+        "Subtraction",
+        "Multiplication",
+        "Division",
+        "Power",
+        "Square Root",
+        "Logarithm (base 10)",
+        "Natural Logarithm (ln)",
+        "Sine",
+        "Cosine",
+        "Tangent"
+    ]
+)
+
+# Input fields for operations
+if operation in ["Addition", "Subtraction", "Multiplication", "Division", "Power"]:
+    num1 = st.number_input("Enter the first number:", format="%.2f")
+    num2 = st.number_input("Enter the second number:", format="%.2f")
+    if st.button("Calculate"):
+        if operation == "Addition":
+            st.success(f"Result: {num1} + {num2} = {num1 + num2}")
+        elif operation == "Subtraction":
+            st.success(f"Result: {num1} - {num2} = {num1 - num2}")
+        elif operation == "Multiplication":
+            st.success(f"Result: {num1} * {num2} = {num1 * num2}")
+        elif operation == "Division":
+            if num2 != 0:
+                st.success(f"Result: {num1} / {num2} = {num1 / num2}")
+            else:
+                st.error("Error: Division by zero is not allowed.")
+        elif operation == "Power":
+            st.success(f"Result: {num1} ^ {num2} = {math.pow(num1, num2)}")
+
+elif operation == "Square Root":
+    num = st.number_input("Enter the number:", format="%.2f")
+    if st.button("Calculate"):
+        if num >= 0:
+            st.success(f"Result: √{num} = {math.sqrt(num)}")
+        else:
+            st.error("Error: Square root of a negative number is not allowed.")
+
+elif operation == "Logarithm (base 10)":
+    num = st.number_input("Enter the number:", format="%.2f")
+    if st.button("Calculate"):
+        if num > 0:
+            st.success(f"Result: log10({num}) = {math.log10(num)}")
+        else:
+            st.error("Error: Logarithm is only defined for positive numbers.")
+
+elif operation == "Natural Logarithm (ln)":
+    num = st.number_input("Enter the number:", format="%.2f")
+    if st.button("Calculate"):
+        if num > 0:
+            st.success(f"Result: ln({num}) = {math.log(num)}")
+        else:
+            st.error("Error: Natural logarithm is only defined for positive numbers.")
+
+elif operation in ["Sine", "Cosine", "Tangent"]:
+    angle = st.number_input("Enter the angle in degrees:", format="%.2f")
+    if st.button("Calculate"):
+        radians = math.radians(angle)
+        if operation == "Sine":
+            st.success(f"Result: sin({angle}) = {math.sin(radians)}")
+        elif operation == "Cosine":
+            st.success(f"Result: cos({angle}) = {math.cos(radians)}")
+        elif operation == "Tangent":
+            st.success(f"Result: tan({angle}) = {math.tan(radians)}")