Three and Four Place Tables of Logarithmic and Trigonometric Functions.. By James Mills Peirce. 16 pp. (Boston: Ginn Brothers, 1871.) ...

Astronomers prepared tables of trigonometric functions (especially for triangles on a sphere) from ancient times. With the introduction of the printing press, and the rapid decrease in the cost of ...

In the mid-twentieth century, American tool manufacturers sometimes distributed trigonometry tables that included advertisements for their products. This small paper pamphlet includes definitions of ...

7 GIFs illustrate trigonometry concepts, making math more engaging and fun. Subscribe ... but many fail to make the leap on how crucial circles are for trig functions.

The table of trigonometric values was made more than a thousand years before math historians thought trigonometry was invented. By Avery Thompson Published: Aug 25, 2017 2:59 PM EDT.

A 3,700-year-old clay tablet has proven that the Babylonians developed trigonometry 1,500 years before the Greeks and were using a sophisticated method of mathematics which could change how we ...