Across
- 2. uses Algebra in Trigonometry
- 4. he developed the idea of inverse trigonometric functions
- 5. applied method of analysis into TRIGONOMETRY
- 6. used Arabic Numerals to prepare a table of signs of great Accuracy
- 7. Rhaeticus
- 8. founder of Trigonometry
- 9. introduced the "sin", "cos", "tan"
- 11. wrote the first book of trigonometry that is independent of the topic in Astronomy
- 12. introduced the Arabic, Algebraic, and Trigonometric methods
Down
- 1. famous for Moivre's formla
- 3. introduced the word TRIGONOMETRY
- 10. Introduced functions to trigonometry