Abraham Sharp

Abraham Sharp (1651-1742) was a schoolmaster of Liverpool, and subsequent bookkeeper in London, whose wide knowledge of mathematics, astronomy, etc., attracted Flamsteed, by whom he was invited in 1688 to enter the Greenwich Royal Observatory, where he did notable work, improving instruments, and showing great skill as a calculator; published "Geometry Improved," logarithmic tables, etc.

See also: Abraham Sharp's Polyhedra