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Scientific Computing with Python

Scientific Computing with Python

By : Führer, Claus Fuhrer, Solem, Verdier
4.5 (15)
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Scientific Computing with Python

Scientific Computing with Python

4.5 (15)
By: Führer, Claus Fuhrer, Solem, Verdier

Overview of this book

Python has tremendous potential within the scientific computing domain. This updated edition of Scientific Computing with Python features new chapters on graphical user interfaces, efficient data processing, and parallel computing to help you perform mathematical and scientific computing efficiently using Python. This book will help you to explore new Python syntax features and create different models using scientific computing principles. The book presents Python alongside mathematical applications and demonstrates how to apply Python concepts in computing with the help of examples involving Python 3.8. You'll use pandas for basic data analysis to understand the modern needs of scientific computing, and cover data module improvements and built-in features. You'll also explore numerical computation modules such as NumPy and SciPy, which enable fast access to highly efficient numerical algorithms. By learning to use the plotting module Matplotlib, you will be able to represent your computational results in talks and publications. A special chapter is devoted to SymPy, a tool for bridging symbolic and numerical computations. By the end of this Python book, you'll have gained a solid understanding of task automation and how to implement and test mathematical algorithms within the realm of scientific computing.
Table of Contents (23 chapters)
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20
About Packt
22
References

Redirecting streams

The standard input is expecting a data stream from the keyboard. But the input can be redirected from a file instead. This is done by using the redirection symbol < in Linux. We demonstrate this by using the same script as previously, but now a data file, intest.txt, provides the script with data; see Figure 17.5:

Figure 17.5: Screenshot to demonstrate the redirection of input (sys.stdin)

No modification in the script itself is required. It can be used in either way.

The same holds for outputs. By default the output is displayed in the terminal, but also here there is the option to redirect the output to a file. In that case, the redirect symbol is >; see Figure 17.6:

Figure 17.6: Screenshot of a redirected input and redirected output

Now, a file with the name result.txt is created and the output of the script is written to it. If there was already a file with this name, its content is overwritten. If instead the output should be appended to an already-existing...

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