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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

2.4.1 Escape sequences and raw strings

The string '\n' is used to insert a line break and '\t' inserts a horizontal tabulator (TAB) into the string to align several lines:

print('Temperature\t20\tC\nPressure\t5\tPa')

These strings are examples of escape sequences. Escape sequences always start with a backslash, \. A multiline string automatically includes escape sequences:

a=""" 
A multi-line
example"""
a # returns '\nA multi-line \nexample'

A special escape sequence is "\\", which represents the backslash symbol in text:

latexfontsize="\\tiny"
print(latexfontsize) # prints \tiny

The same can be achieved by using a raw string instead:

latexfs=r"\tiny" # returns "\tiny"
latexfontsize == latexfs # returns True

Note that in raw strings, the backslash remains in the string and is used to escape some special characters:

print(r"\"") # returns \"
print(r"\\") # returns \
print(r"\") # returns an error (why?)

A raw string is a convenient tool to construct strings in a readable manner. The result is the same:

r"\"" == '\\"'
r"She: \"I am my dad's girl\"" == 'She: \\"I am my dad\'s girl\\"'

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