Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "First, let's import the math library so that we can use the exponential function."

A block of code is set as follows:

def sigmoid ( x ):    
    return 1 / ( 1 + e **- x )

Any command-line input or output is written as follows:

pip install tensorflow

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Use the New dropdown in the top-right corner to create a new Python 3 notebook."