Book Image

NumPy: Beginner's Guide

By : Ivan Idris
Book Image

NumPy: Beginner's Guide

By: Ivan Idris

Overview of this book

Table of Contents (21 chapters)
NumPy Beginner's Guide Third Edition
About the Author
About the Reviewers
NumPy Functions' References

Chapter 2. Beginning with NumPy Fundamentals

After installing NumPy and getting some code to work, it's time to cover NumPy basics.

The topics we shall cover in this chapter are as follows:

  • Data types

  • Array types

  • Type conversions

  • Array creation

  • Indexing

  • Slicing

  • Shape manipulation

Before we start, let me make a few remarks about the code examples in this chapter. The code snippets in this chapter show input and output from several IPython sessions. Recall that IPython was introduced in Chapter 1, NumPy Quick Start, as the interactive Python shell of choice for scientific computing. The advantages of IPython are the --pylab switch that imports many scientific computing Python packages, including NumPy, and the fact that it is not necessary to explicitly call the print() function to display variable values. Other features include easy parallel computation and the notebook interface in the form of a persistent worksheet in a web browser.

However, the source code delivered alongside the book is a regular...