after him. Some of the trigonometric identities used in prosthaphaeresis, an early method for rapid computation of products, were named Werner formulas in honor of Werner's role in development of the algorithm. See also History of longitude References External links Johann Werner Werner Map Projection Bonne Map Projection Cordiform Map Projection 1468 births 1528 deaths Scientists from Nuremberg German cartographers Medieval German mathematicians 15th-century German astronomers German scientific instrument makers 16th-century German mathematicians 16th-century German astronomers 16th-century cartographers 16th-century geographers 16th-century Latin-language writers 16th-century German writers 16th-century German male writers 15th-century German mathematicians