April 2022
Beginner to intermediate
252 pages
5h 43m
English
Content preview from Essential Mathematics for Quantum Computing
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Appendix 3: Trigonometry
In some of the chapters, we have relied heavily on trigonometry. You probably took trig (the shortened alias for trigonometry) in high school but may have not used it for a long time. This chapter is meant as a refresher or just an introduction.
In this chapter, we are going to cover the following main topics:
- Measuring angles
- Trigonometric functions
- Formulas
Measuring angles
It all starts with angles in trigonometry. There are two main ways to measure angles – degrees and radians. Radians are almost exclusively used in quantum computing, but you are probably more familiar with degrees, so we'll start there.
Degrees
There are 360 degrees in a circle. Probably the most familiar use of degrees is in a compass, as shown ...
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