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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
Appendices
Appendix C: The Complete UniPoly Class
Appendix D: The Complete Guitar Class Hierarchy
Appendix F: Production Notes

7.10 More polynomial magic

Now that we’ve laid the groundwork for polynomials, it’s time to implement operations like addition, subtraction, and multiplication. Since we are restricting ourselves to integer coefficients, we do not implement division.

7.10.1 A better __str__

We’ll start to see more than one term, and we need a more robust implementation of __str__.

def __str__(self):
    """Creates a human-readable string representation.

    This returns forms that look like 2x**6 + x**3 - 1.

    Returns
    -------
    str
        Mathematical human-readable form of the polynomial.
    """
    if not self.__terms:
        return '0'

    def format_term(coefficient, exponent):
        """Format a single term in the polynomial.

        This function formats a term and handles the special
        cases when the coefficient is +/- 1 or the exponent is
        0...

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