抖阴探探

Introduction

Author

Clayton Cafiero

Published

2025-01-05

This chapter introduces functions. Functions are a fundamental building block for code in all programming languages (though they may go by different names, depending on context).

Learning objectives

  • You will learn how to write simple functions in Python, using def.
  • You will learn how to use functions in your code.
  • You will learn that indentation is syntactically meaningful in Python (unlike many other languages).
  • You will learn how to use functions (and constants) in Python鈥檚 math module, such as square root and sine.
  • You will expand on and solidify your understanding of topics presented in earlier chapters.

Terms and keywords introduced

  • argument
  • call or invoke
  • def keyword
  • dot notation
  • formal parameter
  • function
  • import
  • keyword
  • local variable
  • module
  • pure and impure functions
  • return keyword
  • return value
  • scope
  • shadowing
  • side effect

Copyright 漏 2023鈥�2025 Clayton Cafiero

No generative AI was used in producing this material. This was written the old-fashioned way.

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