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How do you find trigonometric ratios without a calculator?

In: Math and Arithmetic, Math History, Trigonometry [Edit categories]

Answer:

There are a few ways. First, there are a multitude of trigonometric tables which list the sines and cosines of a variety of values. if you now one trigonometric value of a number, you can find all the others by hand, and you can also use a Taylor series approximation to find a fairly accurate value. (In fact, many calculators use Taylor series to find trigonometric values.)

First answer by Alierond. Last edit by Alierond. Contributor trust: 39 [recommend contributor ]. Question popularity: 1 [recommend question].

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