Powered by JavaScript, PHP and Visual Basic .NET
Steps of calculating the result:

  1. JavaScript takes the first and second number.
  2. JavaScript sends the first and second number to PHP.
  3. PHP sends to Visual Basic .NET the first and second number.
  4. PHP waits for Visual Basic .NET for the result.
  5. Visual Basic .NET calculates the result.
  6. PHP takes the result from Visual Basic .NET.
  7. PHP sends the result back to JavaScript.
  8. JavaScript writes the result to the user.
Note: This calculator works only with normal numbers.