Trigonometry: Chords, Arcs and Angles
Trigonometric functions - MacTutor History of Mathematics
How Ptolemy constructed trigonometry tables
![Ptolemyʼs table of chords [20]. | Download Scientific Diagram](https://www.researchgate.net/profile/Stefano-Buscherini/publication/216420998/figure/fig2/AS:394123409412100@1470977751305/Ptolemys-table-of-chords-20_Q640.jpg "Ptolemyʼs table of chords [20]. | Download Scientific Diagram")
Ptolemyʼs table of chords [20]. | Download Scientific Diagram
![Ptolemyʼs table of chords [20]. | Download Scientific Diagram](https://www.researchgate.net/publication/216420998/figure/fig2/AS:394123409412100@1470977751305/Ptolemys-table-of-chords-20.png "Ptolemyʼs table of chords [20]. | Download Scientific Diagram")
Ptolemyʼs table of chords [20]. | Download Scientific Diagram
A Genetic Context for Understanding the Trigonometric Functions: Hipparchus' Table of Chords
![Ptolemyʼs table of chords [20]. | Download Scientific Diagram](https://www.researchgate.net/profile/Stefano-Buscherini/publication/216420998/figure/fig2/AS:394123409412100@1470977751305/Ptolemys-table-of-chords-20_Q320.jpg "Ptolemyʼs table of chords [20]. | Download Scientific Diagram")
Ptolemyʼs table of chords [20]. | Download Scientific Diagram
Hipparchus (190 BC - 120 BC) - Biography - MacTutor History of Mathematics
arXiv:1510.03180v2 [math.HO] 2 Feb 2016
Chords
Lecture on Claudius Ptolemy - ppt download
Trigonometry: Chords, Arcs and Angles
Chords
Metron Ariston: 2018
Ptolemy's table of chords - Wikipedia
SC/NATS 1730, IX 1 Claudius Ptolemy Saving the Heavens. - ppt download
Ptolemy's table of chords - Wikipedia
Think Like Archimedes. Trigonometry finds its roots in the… | by Adam Hrankowski, ADHD | MathAdam | Medium
astro268 / Hipparchus
arXiv:1510.03180v2 [math.HO] 2 Feb 2016
Mathematical table - Wikiwand
Hipparchus's Contribution in Mathematics – StudiousGuy
