
Ptolemaic Mathematics
Ptolemaic mathematics refers to the mathematical theories and methods developed by Claudius Ptolemy, a Roman-Egyptian scientist, in the 2nd century AD. Central to his work was the Almagest, which introduced a geocentric model of the universe, using trigonometry to compute planetary positions and motions. Ptolemy's use of chords in circles laid the groundwork for modern trigonometry. His methods allowed for accurate predictions of celestial events, influencing astronomy and navigation for centuries. While later replaced by heliocentric models, Ptolemy's contributions remain a significant part of the history of mathematics and science.