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## Chapter 3. Data

### Introduction

At the end of Chapter 2 we described data wires and how to use them for sending data from one block to another. Handling data is what programming is all about, so let's take a closer look at how data wires work.

There are three kinds of data wires for conveying the three types of data:

• Numeric Integers (whole numbers), including negatives, for example 50, 6, −261.
• Logic Have one of two possible values, False or True.
• Text A string of alphanumeric characters, for example Hello, turn right, 471, D34r7.

One type of data that NXT-G does not have is floating point data; that is, numeric data with a decimal fraction. Examples are 3.4, 124.778, 72.9 (more precise than 73), and 0.0053. It is not often that we need to ...

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