- Edward R. Hogan
Adrain, Robert (30 September 1775–10 August 1843), mathematician, was born in Carrickfergus, Ireland. Neither parent’s name is known; his father was a schoolteacher and a maker of mathematical instruments. Adrain was fifteen when both of his parents died. His early education, though good, had not included any mathematics beyond arithmetic. After becoming curious about algebraic notation, he began to teach himself algebra. Thus Adrain, like many of the American mathematicians with whom he would soon interact, was largely self-taught....