PC games with python #472804

The Inter lively ShellBefore you may make video games, you want toanalyze some fundamental programming principles.You’ll begin on this bankruptcy with the aid of using mastering howto apply Python’s interactive shell and carry outfundamental arithmetic.Topics Covered in This Chapter• Operators• Integers and floating-factor numbers• Values• Expressions• Syntax mistakes• Storing values in variables2 Chapter 1Some Simple MathStart IDLE with the aid of using following the stairs in “Starting IDLE” on web page xxvi. Firstyou’ll use Python to clear up a few easy math problems. The interactiveshell can paintings similar to a calculator. Type 2 + 2 into the interactive shell atthe >>> activate and press input. (On a few keyboards, this key's go back.)Figure 1-1 suggests how this math hassle appears withinside the interactive shell—note that it responds with the variety four.Figure 1-1: Entering 2 + 2 into the interactive shellThis math hassle is a easy programming coaching. The plussign (+) tells the pc to feature the numbers 2 and a pair of. The pc doesthis and responds with the variety four on the subsequent line. Table 1-1 lists thedifferent math symbols to be had in Python.Table 1-1: Math OperatorsOperator Operation+ Addition- Subtraction* Multiplication/ DivisionThe minus sign (-) subtracts numbers, the asterisk (*) multiplies numbers,and the slash (/) divides numbers. When used on this manner, +, -, *, and /are known as operators. Operators inform Python what to do with the numbers surroundingthem.Integers and Floating-Point NumbersIntegers (or ints for brief) are complete numbers along with four, 99, and zero.