free math books
GNU/Linux Command-Line Tools Summary.pdf
Taken from The Unix Tools Philosophy: A tool is a simple program, usually designed for a specific purpose, it is sometimes referred to (at least throughout this document) as a command.
The ” Unix tools philosophy” emerged during the creation of the UNIX operating system, after the breakthrough invention of the pipe ‘|’ (refer to Chapter 6 for information on using the pipe).
The pipe allowed the output of one program to be sent to the input of another. The tools philosophy was to have small programs to accomplish a particular task instead of trying to develop large monolithic programs to do a large number of tasks. To accomplish more complex tasks, tools would simply be connected together, using pipes.
All the core UNIX system tools were designed so that they could operate together. The original text?based editors (and even TeX and LaTeX) use ASCII (the American text encoding standard; an open standard) and you can use tools such as; sed, awk, vi, grep, cat, more, tr and various other text?based tools in conjunction with these editors.
Advanced Bash-Scripting Guide: An in-depth exploration of the art of shell scripting.pdf
This is the version 6.2 of Advanced Bash-Scripting Guide: An in-depth exploration of the art of shell scripting that is written by Mendel Cooper. Last update was Mar 2010.
Department of Energy: Fundamental Handbook Mathematics.pdf
The Department of Energy Fundamentals Handbook entitled Mathematics was prepared as an information resource for personnel who are responsible for the operation of the Department’s nuclear facilities. A basic understanding of mathematics is necessary for DOE nuclear facility operators, maintenance personnel, and the technical staff to safely operate and maintain the facility and facility support systems. The information in the handbook is presented to provide a foundation for applying engineering concepts to the job. This knowledge will help personnel more fully understand the impact that their actions may have on the safe and reliable operation of facility components and systems.
Texas Instruments: Op Amps for Everyone.pdf
Taken from Review of Circuit Theory-Introduction: Although this book minimizes math, some algebra is germane to the understanding of analog electronics. Math and physics are presented here in the manner in which they are used later, so no practice exercises are given. For example, after the voltage divider rule is explained, it is used several times in the development of other concepts, and this usage constitutes practice.
Circuits are a mix of passive and active components. The components are arranged in a manner that enables them to perform some desired function. The resulting arrangement of components is called a circuit or sometimes a circuit configuration. The art portion of analog design is developing the circuit configuration. There are many published circuit configurations for almost any circuit task, thus all circuit designers need not be artists.
When the design has progressed to the point that a circuit exists, equations must be written to predict and analyze circuit performance. Textbooks are filled with rigorous methods for equation writing, and this review of circuit theory does not supplant those textbooks.
But, a few equations are used so often that they should be memorized, and these equations are considered here.
There are almost as many ways to analyze a circuit as there are electronic engineers, and if the equations are written correctly, all methods yield the same answer. There are some simple ways to analyze the circuit without completing unnecessary calculations, and these methods are illustrated here.
Electromechanical Dynamics.pdf
Taken from Resource Description: First published in 1968 by John Wiley and Sons, Inc., Electromechanical Dynamics discusses the interaction of electromagnetic fields with media in motion. The subject combines classical mechanics and electromagnetic theory and provides opportunities to develop physical intuition. The book uses examples that emphasize the connections between physical reality and analytical models. Types of electromechanical interactions covered include rotating machinery, plasma dynamics, the electromechanics of biological systems, and magnetoelasticity.
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