9 lives in this collection worked in trigonometry, from 190 BC to today. Each has a full course on their life and the mathematics and physics they made.
Often together with: astronomy, geography, geometry, mathematics. All fields
Greek astronomer of the second century BC who built the first known chord table, fitted geometric models of the Sun and Moon to observations, bounded the Moon's distance, compiled a star catalogue and discovered the precession of the equinoxes.
astronomy, trigonometry, geography
Alexandrian astronomer of the second century AD whose Almagest set out the geocentric models, chord table and star catalogue that governed astronomy until Copernicus and Kepler.
astronomy, trigonometry, geography
Author of the Aryabhatiya (499), the earliest surviving Indian mathematical-astronomical treatise by a named author, with a sine table, the kuttaka method, pi as 3.1416 and a rotating Earth.
astronomy, mathematics, trigonometry
Khwarazmian polymath who measured the Earth's radius from a hilltop, determined longitudes from eclipse timings, systematized trigonometry for astronomy in the Mas'udic Canon, and wrote the classic medieval study of India.
astronomy, trigonometry, geodesy
Persian scholar who devised the Tusi couple and equant-free planetary models, made trigonometry an independent discipline, and directed the Maragha observatory.
astronomy, trigonometry, geometry
Founder of the Kerala school, credited by his successors with the infinite series for π, the arctangent, the sine and the cosine, with end-correction terms, two and a half centuries before their European rediscovery.
astronomy, mathematics, infinite series
Fifteenth-century German astronomer who completed the Epitome of the Almagest, wrote the first European textbook of trigonometry and founded one of the first scientific printing presses.
astronomy, trigonometry, mathematical tables
French lawyer and royal councillor who introduced letters for known quantities, founding symbolic algebra and the theory of equations.
algebra, theory of equations, trigonometry
Huguenot exile in London who found the normal approximation to the binomial distribution, the formula (cos x + i sin x)^n = cos nx + i sin nx, and the first practical mathematics of life annuities.
probability theory, analysis, actuarial science