Algorithms For Dummies

Working with Numbers and Logic

Interacting with algorithms involves working with data of various sorts, but much 

of the work involves numbers. In addition, you use logical values to make deci-

sions about the data you use. For example, you might need to know whether two 

values are equal or whether one value is greater than another value. Python sup-

ports these number and logic value types:

 

»

Any whole number is an integer. For example, the value 1 is a whole number, so 

it’s an integer. On the other hand, 1.0 isn’t a whole number; it has a decimal part 

to it, so it’s not an integer. Integers are represented by the 

int

 data type. On 

most platforms, you can store numbers between –9,223,372,036,854,775,808 

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CHAPTER 4