Calculator

1. Simple Calculator App

  • A user-friendly Shiny web app for basic arithmetic.
  • Enter two numbers, choose an operation, get instant results.

2. Why This App?

  • Many people need quick, reliable calculations.
  • No installation, works on any device.
  • Great for students, teachers, and professionals.

3. How It Works

  • Input two numbers.
  • Select an operation (add, subtract, multiply, divide).
  • Result updates instantly.

Example calculation

num1 <- 10
num2 <- 5
resultado <- num1 + num2
resultado
[1] 15

4. See It In Action

  • Clean interface, instant feedback.
  • Handles errors (e.g., division by zero).

Simulate division by zero

num1 <- 10 
num2 <- 0 
result <- ifelse(num2 == 0, "Error: Division by zero", num1 / num2) 
result
[1] "Error: Division by zero"

5. Try It Yourself!