The rudiments of mathematics : designed for the use of students at the universities: containing an introduction to algebra, remarks on the first six books of Euclid, the elements of plane trigonometry: by W. Ludlam. - Ludlam, William, (printed by J. Archdeacon; for J. & J. Merrill, in Cambridge; T. Cadell; B. White; and G. & T. Wilkie, London,, 1787)