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Dancing with Python

Dancing with Python

By : Robert S. Sutor
5 (7)
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Dancing with Python

Dancing with Python

5 (7)
By: Robert S. Sutor

Overview of this book

Dancing with Python helps you learn Python and quantum computing in a practical way. It will help you explore how to work with numbers, strings, collections, iterators, and files. The book goes beyond functions and classes and teaches you to use Python and Qiskit to create gates and circuits for classical and quantum computing. Learn how quantum extends traditional techniques using the Grover Search Algorithm and the code that implements it. Dive into some advanced and widely used applications of Python and revisit strings with more sophisticated tools, such as regular expressions and basic natural language processing (NLP). The final chapters introduce you to data analysis, visualizations, and supervised and unsupervised machine learning. By the end of the book, you will be proficient in programming the latest and most powerful quantum computers, the Pythonic way.
Table of Contents (29 chapters)
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2
Part I: Getting to Know Python
10
PART II: Algorithms and Circuits
14
PART III: Advanced Features and Libraries
19
References
20
Other Books You May Enjoy
1
Appendices
4
Appendix C: The Complete UniPoly Class
5
Appendix D: The Complete Guitar Class Hierarchy
7
Appendix F: Production Notes

5.6 Symbolic computation

In mathematics, we see more than numbers and numeric vectors and matrices. Polynomials are used in many disciplines, though they do not have a native Python implementation. In a polynomial, we use an “indeterminate” symbolically without requiring a numeric value. For example,

Example of a polynomial

The computer science discipline that deals with these and more advanced mathematical objects is called “computer algebra” or “symbolic mathematical computation.” [AXM]

The sympy package implements symbolic computation tools, and its documentation showcases its broad functionality. It is not part of the Python Standard Library, so you must install it via a command from the operating system command line:

pip install sympy

Several examples give you an idea of what sympy can do.

We first define an indeterminate symbol x and a polynomial p.

import sympy...
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Dancing with Python
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