For this week’s blog we are going to create a simple calculator using Legato. Legato offers a wide variety of math functions that we can use to program the calculator. Before we get started coding, let’s think about the parts of the script we will need. First there will need to be a user interface. In our case, a dialog works perfectly. Secondly, we need to have a way to store operands, and a floating point number is good choice here. If we use only an integer the user cannot do decimal math. Finally, we will need to have operation processing. For this we will use Legato’s math functions. To begin I am going to set up the basics of the dialog, and we can add the processing together.