How to Create a Calculator Using StreamLit?

by Team - Programmingempireupdated on November 4, 2023November 4, 2023Leave a Comment

In this blog, I will explain How to Create a Calculator Using StreamLit.

Creating a simple calculator using Streamlit is a great way to demonstrate how user input and interaction can be handled. In this example, I’ll show you how to build a basic calculator that performs addition, subtraction, multiplication, and division. You can then expand on this by adding more functionality or styling.

At first, import the Streamlit library. After that, create the user interface for the calculator using Streamlit’s widgets. You’ll need input fields for the numbers, radio buttons for selecting the operation, and a button to calculate the result.

import streamlit as st
st.title("Calculator")

# Input fields for two numbers
num1 = st.number_input("Enter the first number", value=0.0)
num2 = st.number_input("Enter the second number", value=0.0)

# Radio buttons for selecting the operation
operation = st.radio("Select an operation", ("Addition", "Subtraction", "Multiplication", "Division"))

# Button to calculate the result
if st.button("Calculate"):
    if operation == "Addition":
        result = num1 + num2
    elif operation == "Subtraction":
        result = num1 - num2
    elif operation == "Multiplication":
        result = num1 * num2
    elif operation == "Division":
        if num2 == 0:
            result = "Cannot divide by zero"
        else:
            result = num1 / num2

    st.write(f"Result: {result}")

When you run the app, a new tab will open in your web browser with the calculator. Users can input two numbers, select an operation, and click the “Calculate” button to see the result.

Calculator App Using Streamlit — Calculator App Using Streamlit

That’s it! You’ve created a simple calculator using Streamlit. You can expand on this by adding more operations, error handling, and advanced features like memory functions or scientific calculations.

Further Reading

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