In this chapter

A Brief Review of Trigonometry Basics 740

Examples of Trig Functions 750

Working with Imaginary Numbers 756

Solving Simultaneous Linear Equations with Matrix Functions 763

Examples of Engineering Functions 770

Using the Analysis Toolpack to Perform Fast Fourier Transforms (FFTs) 794

Scientists, mathematicians, and engineers, as well as high school mathematics students, will get the broadest use out of the functions in this chapter.

Even though many of the trigonometry functions might seem intimidating, I have tried to provide practical household examples for many of the functions. Anyone who has to lean a ladder up against a house can find a use for the trig functions. ...

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