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- Sage Beginner's Guide. Unlock the full potential of Sage for simplifying and automating mathematical computing with this book and
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![Sage Beginner's Guide. Unlock the full potential of Sage for simplifying and automating mathematical computing with this book and](https://static01.helion.com.pl/global/okladki/326x466/e_3c7q.jpg)
Sage Beginner's Guide. Unlock the full potential of Sage for simplifying and automating mathematical computing with this book and
Ebook
- SageBeginners Guide
- Table of Contents
- Sage Beginner's Guide
- Credits
- About the Author
- About the Reviewers
- www.PacktPub.com
- Support files, eBooks, discount offers and more
- Why Subscribe?
- Free Access for Packt account holders
- Support files, eBooks, discount offers and more
- Preface
- What this book covers
- What you need for this book
- Who this book is for
- Conventions
- Time for action heading
- What just happened?
- Pop quiz heading
- Have a go hero heading
- Reader feedback
- Customer support
- Downloading the example code
- Errata
- Piracy
- Questions
- 1. What Can You Do with Sage?
- Getting started
- Using Sage as a powerful calculator
- Symbolic mathematics
- Have a go hero
- Linear algebra
- Solving an ordinary differential equation
- More advanced graphics
- Visualising a three-dimensional surface
- Typesetting mathematical expressions
- A practical example: analysing experimental data
- Time for action fitting the standard curve
- What just happened?
- Time for action plotting experimental data
- What just happened?
- Time for action fitting a growth model
- What just happened?
- Summary
- 2. Installing Sage
- Before you begin
- Installing a binary version of Sage on Windows
- Downloading VMware Player
- Installing VMWare Player
- Downloading and extracting Sage
- Launching the virtual machine
- Start Sage
- Installing a binary version of Sage on OS X
- Downloading Sage
- Installing Sage
- Starting Sage
- Installing a binary version of Sage on GNU/Linux
- Downloading and decompressing Sage
- Running Sage from your user account
- Installing for multiple users
- Building Sage from source
- Prerequisites
- Downloading and decompressing source tarball
- Building Sage
- Installation
- Summary
- 3. Getting Started with Sage
- How to get help with Sage
- Starting Sage from the command line
- Using the interactive shell
- Time for action doing calculations on the command line
- What just happened?
- Getting help
- Command history
- Tab completion
- Interactively tracing execution
- Using the notebook interface
- Starting the notebook interface
- Time for action doing calculations with the notebook interface
- What just happened?
- Getting help in the notebook interface
- Working with cells
- Working with code
- Closing the notebook interface
- Have a go hero using the notebook interface
- Displaying results of calculations
- Operators and variables
- Arithmetic operators
- Pop quiz working with operators
- Numerical types
- Integers and rational numbers
- Real numbers
- Complex numbers
- Symbolic expressions
- Defining variables on rings
- Combining types in expressions
- Pop quiz understanding types
- Strings
- Time for action using strings
- What just happened?
- Callable symbolic expressions
- Time for action defining callable symbolic expressions
- What just happened?
- Automatically typesetting expressions
- Functions
- Time for action calling functions
- What just happened?
- Have a go hero make some more plots
- Built-in functions
- Numerical approximations
- The reset and restore functions
- Defining your own functions
- Time for action defining and using your own functions
- What just happened?
- Functions with keyword arguments
- Time for action defining a function with keyword arguments
- What just happened?
- Objects
- Time for action working with objects
- What just happened?
- Getting help with objects
- Summary
- 4. Introducing Python and Sage
- Python 2 and Python 3
- Writing code for Sage
- Long lines of code
- Running scripts
- Sequence types: lists, tuples, and strings
- Time for action creating lists
- What just happened?
- Getting and setting items in lists
- Time for action accessing items in a list
- What just happened?
- Pop quiz lists and indexing
- List functions and methods
- Tuples: read-only lists
- Time for action returning multiple values from a function
- What just happened?
- Strings
- Time for action working with strings
- What just happened?
- Other sequence types
- For loops
- Time for action iterating over lists
- What just happened?
- Time for action computing a solution to the diffusion equation
- What just happened?
- Pop quiz lists and for loops
- Have a go hero adding another for loop
- List comprehensions
- Time for action using a list comprehension
- What just happened?
- While loops and text file I/O
- Time for action saving data in a text file
- What just happened?
- Time for action reading data from a text file
- What just happened?
- While loops
- Parsing strings and extracting data
- Alternative approach to reading from a text file
- Have a go hero define a function for reading the text file
- Have a go hero replace a for loop with a while loop
- If statements and conditional expressions
- Storing data in a dictionary
- Time for action defining and accessing dictionaries
- What just happened?
- Lambda forms
- Time for action using lambda to create an anonymous function
- What just happened?
- Summary
- 5. Vectors, Matrices, and Linear Algebra
- Vectors and vector spaces
- Time for action working with vectors
- What just happened?
- Creating a vector space
- Creating and manipulating vectors
- Time for action manipulating elements of vectors
- What just happened?
- Vector operators and methods
- Matrices and matrix spaces
- Time for action solving a system of linear equations
- What just happened?
- Creating matrices and matrix spaces
- Accessing and manipulating matrices
- Time for action accessing elements and parts of a matrix
- What just happened?
- Manipulating matrices
- Time for action manipulating matrices
- What just happened?
- Pop quiz manipulating matrices
- Matrix algebra
- Time for action matrix algebra
- What just happened?
- Other matrix methods
- Time for action trying other matrix methods
- What just happened?
- Eigenvalues and eigenvectors
- Time for action computing eigenvalues and eigenvectors
- What just happened?
- Have a go hero verifying the eigenvalues and eigenvectors
- Decomposing matrices
- Time for action computing the QR factorization
- What just happened?
- Time for action computing the singular value decomposition
- What just happened?
- An introduction to NumPy
- Time for action creating NumPy arrays
- What just happened?
- Creating NumPy arrays
- NumPy types
- Indexing and selection with NumPy arrays
- Time for action working with NumPy arrays
- What just happened?
- Have a go hero replacing lists with NumPy arrays
- NumPy matrices
- Time for action creating matrices in NumPy
- What just happened?
- Learning more about NumPy
- Summary
- 6. Plotting with Sage
- Confusion alert: Sage plots and matplotlib
- Plotting in two dimensions
- Plotting symbolic expressions with Sage
- Time for action plotting symbolic expressions
- What just happened?
- Time for action plotting a function with a pole
- What just happened?
- Time for action plotting a parametric function
- What just happened?
- Time for action making a polar plot
- What just happened?
- Time for action plotting a vector field
- What just happened?
- Plotting data in Sage
- Time for action making a scatter plot
- What just happened?
- Time for action plotting a list
- What just happened?
- Using graphics primitives
- Time for action plotting with graphics primitives
- What just happened?
- Using matplotlib
- Time for action plotting functions with matplotlib
- What just happened?
- Using matplotlib to "tweak" a Sage plot
- Time for action getting the matplotlib figure object
- What just happened?
- Time for action improving polar plots
- What just happened?
- Plotting data with matplotlib
- Time for action making a bar chart
- What just happened?
- Time for action making a pie chart
- What just happened?
- Time for action plotting a histogram
- What just happened?
- Plotting in three dimensions
- Time for action make an interactive 3D plot
- What just happened?
- Higher quality output
- Parametric 3D plotting
- Time for action parametric plots in 3D
- What just happened?
- Contour plots
- Time for action making some contour plots
- What just happened?
- Summary
- 7. Making Symbolic Mathematics Easy
- Using the notebook interface
- Defining symbolic expressions
- Time for action defining callable symbolic expressions
- What just happened?
- Relational expressions
- Time for action defining relational expressions
- What just happened?
- Time for action relational expressions with assumptions
- What just happened?
- Manipulating expressions
- Time for action manipulating expressions
- What just happened?
- Manipulating rational functions
- Time for action working with rational functions
- What just happened?
- Substitutions
- Time for action substituting symbols in expressions
- What just happened?
- Expanding and factoring polynomials
- Time for action expanding and factoring polynomials
- What just happened?
- Manipulating trigonometric expressions
- Time for action manipulating trigonometric expressions
- What just happened?
- Logarithms, rational functions, and radicals
- Time for action simplifying expressions
- What just happened?
- Solving equations and finding roots
- Time for action solving equations
- What just happened?
- Finding roots
- Time for action finding roots
- What just happened?
- Differential and integral calculus
- Time for action calculating limits
- What just happened?
- Derivatives
- Time for action calculating derivatives
- What just happened?
- Integrals
- Time for action calculating integrals
- What just happened?
- Series and summations
- Time for action computing sums of series
- What just happened?
- Taylor series
- Time for action finding Taylor series
- What just happened?
- Have a go hero Taylor series
- Laplace transforms
- Time for action computing Laplace transforms
- What just happened?
- Solving ordinary differential equations
- Time for action solving an ordinary differential equation
- What just happened?
- Summary
- 8. Solving Problems Numerically
- Sage and NumPy
- Solving equations and finding roots numerically
- Time for action finding roots of a polynomial
- What just happened?
- Finding minima and maxima of functions
- Time for action minimizing a function of one variable
- What just happened?
- Functions of more than one variable
- Time for action minimizing a function of several variables
- What just happened?
- Numerical approximation of derivatives
- Time for action approximating derivatives with differences
- What just happened?
- Computing gradients
- Time for action computing gradients
- What just happened?
- Numerical integration
- Time for action numerical integration
- What just happened?
- Numerical integration with NumPy
- Time for action numerical integration with NumPy
- What just happened?
- Discrete Fourier transforms
- Time for action computing discrete Fourier transforms
- What just happened?
- Window functions
- Time for action plotting window functions
- What just happened?
- Have a go hero using window functions
- Solving ordinary differential equations
- Time for action solving a first-order ODE
- What just happened?
- Solving a system of ODEs
- Time for action solving a higher-order ODE
- What just happened?
- Solving the system using the GNU Scientific Library
- Time for action alternative method of solving a system of ODEs
- What just happened?
- Numerical optimization
- Time for action linear programming
- What just happened?
- Fitting a function to a noisy data set
- Time for action least squares fitting
- What just happened?
- Constrained optimization
- Time for action a constrained optimization problem
- What just happened?
- Probability
- Time for action accessing probability distribution functions
- What just happened?
- Summary
- 9. Learning Advanced Python Programming
- How to write good software
- Object-oriented programming
- Time for action defining a class that represents a tank
- What just happened?
- Making our tanks move
- Time for action making the tanks move
- What just happened?
- Have a go hero checking the values passed to __init__
- Creating a module for our classes
- Time for action creating your first module
- What just happened?
- Expanding our simulation to other kinds of vehicles
- Time for action creating a vehicle base class
- What just happened?
- Creating a package for our simulation
- Time for action creating a combat simulation package
- What just happened?
- Have a go hero adding another derived class
- Potential pitfalls when working with classes and instances
- Time for action using class and instance attributes
- What just happened?
- Time for action more about class and instance attributes
- What just happened?
- Creating empty classes and functions
- Time for action creating empty classes and functions
- What just happened?
- Handling errors gracefully
- Time for action raising and handling exceptions
- What just happened?
- Exception types
- Have a go hero raising exceptions in the __init__ method of Tank
- Creating your own exception types
- Time for action creating custom exception types
- What just happened?
- Unit testing
- Time for action creating unit tests for the Tank class
- What just happened?
- Strategies for unit testing
- Have a go hero creating some unit tests
- Summary
- 10. Where to go from here
- Typesetting equations with LaTeX
- Installing LaTeX
- Time for action PDF output from the notebook interface
- What just happened?
- The view function in the interactive shell
- LaTeX mark-up in the notebook interface
- Time for action working with LaTeX markup in the notebook interface
- What just happened?
- Time for action putting it all together
- What just happened?
- Have a go hero Bessel functions of the second kind
- Speeding up execution
- Time for action detecting collisions between spheres
- What just happened?
- Time for action detecting collisions: command-line version
- What just happened?
- Tips for measuring runtimes
- Optimizing our algorithm
- Time for action faster collision detection
- What just happened?
- Optimizing with NumPy
- Time for action using NumPy
- What just happened?
- More about NumPy
- Optimizing with Cython
- Time for action optimizing collision detection with Cython
- What just happened?
- Have a go hero further optimization with Cython
- Calling Sage from Python
- Time for action calling Sage from a Python script
- What just happened?
- Have a go hero solving an ODE symbolically from Python
- Introducing Python decorators
- Time for action introducing the Python decorator
- What just happened?
- Pop quiz understanding function decorators
- Have a go hero improving the decorator
- Have a go hero the memoize decorator
- Making interactive graphics
- Time for action making interactive controls
- What just happened?
- Using interactive controls
- Time for action an interactive example
- What just happened?
- Have a go hero Taylor series
- Time for action an interactive example
- Summary
- Typesetting equations with LaTeX
- Index
- Title: Sage Beginner's Guide. Unlock the full potential of Sage for simplifying and automating mathematical computing with this book and
- Author: Craig Finch
- Original title: Sage Beginner's Guide. Unlock the full potential of Sage for simplifying and automating mathematical computing with this book and eBook
- ISBN: 9781849514477, 9781849514477
- Date of issue: 2011-05-11
- Format: Ebook
- Item ID: e_3c7q
- Publisher: Packt Publishing