Book Image

The Statistics and Calculus with Python Workshop

By : Peter Farrell, Alvaro Fuentes, Ajinkya Sudhir Kolhe, Quan Nguyen, Alexander Joseph Sarver, Marios Tsatsos
5 (1)
Book Image

The Statistics and Calculus with Python Workshop

5 (1)
By: Peter Farrell, Alvaro Fuentes, Ajinkya Sudhir Kolhe, Quan Nguyen, Alexander Joseph Sarver, Marios Tsatsos

Overview of this book

Are you looking to start developing artificial intelligence applications? Do you need a refresher on key mathematical concepts? Full of engaging practical exercises, The Statistics and Calculus with Python Workshop will show you how to apply your understanding of advanced mathematics in the context of Python. The book begins by giving you a high-level overview of the libraries you'll use while performing statistics with Python. As you progress, you'll perform various mathematical tasks using the Python programming language, such as solving algebraic functions with Python starting with basic functions, and then working through transformations and solving equations. Later chapters in the book will cover statistics and calculus concepts and how to use them to solve problems and gain useful insights. Finally, you'll study differential equations with an emphasis on numerical methods and learn about algorithms that directly calculate values of functions. By the end of this book, you’ll have learned how to apply essential statistics and calculus concepts to develop robust Python applications that solve business challenges.
Table of Contents (14 chapters)
Preface

Using Trapezoids

  1. We can get better approximations sooner using trapezoids rather than rectangles. That way, we won't miss as much area, as you can see in Figure 10.13:

    Figure 10.13: Using trapezoids for better approximations to the curve

    The following is the formula for the trapezoidal rule:

    Figure 10.14: Formula for area of trapezoids

    The heights of the segments at the endpoints x = a and x = b are counted once, while all the other heights are counted twice. That's because there are two heights in the formula for the area of a trapezoid. Can you guess how to adapt your integral function to be trapezoidal?

    def trap_integral(f,a,b,num):
        """Returns the sum of num trapezoids
        under f between a and b"""
        width = (b-a)/num
        area = 0.5*width*(f(a) + f(b) + 2*sum([f(a+width*n) for n in range(1,num)]))
        return area

    Now we'll run the trap_integral...