History of Trigonometry
1. Hipparchus of Nicea (c.140 BC)
> 'Father of Trigonometry'
2. Claude Ptolemy (c. 120-180 AD)
> wrote 'Almagest', a book of table of trigonometric ratios for angles between 0 to 180 degrees
3. Nassir Edin (1201-1274)
> wrote the first treatise of trigonometry
4. Georg Von Purbach (1423-1461) & Johann Muller (1436-1476)
> used Arabic numerals to prepare a table of sines with unprecedented accuracy
5. Rhaeticus Georg Joachim Iserin (1514-1576)
> first to define the six circular functions as ratios of the sides of the right triangle
6. Francois Viete (1540-1660)
> Simplified trigonometry with the use of algebra
7. Bartholomaeus Pitiscus
> wrote the first book to bear the name of 'trigonometry'
8. William Oughtred (1574-1660)
> published a book containing the abbreviation sin, cos, and tan
9. Pythagoras of Samos
> was named after the Pythagorean Theorem
> philosopher - lover of knowledge, student 4ever XP
What did Bernoulli & De Moivre contribute to Trigonometry?
read Chapter 1.1
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