Aristarchus' inequality
In trigonometry, Aristarchus' inequality, named after the ancient astronomer Aristarchus of Samos, states that if α and β are acute angles (i.e. between 0 and a right angle) and β < α then
The first of these inequalities was used by Ptolemy in constructing his table of chords.
Notes and references
External links
Retrieved from : http://en.wikipedia.org/wiki/Aristarchus%27_inequality