"Robert Simson (14 October 1687 \u2013 1 October 1768) was a Scottish mathematician and professor of mathematics at the University of Glasgow. The pedal line of a triangle is sometimes called the \"Simson line\" after him."@en . . "1687Z"^^ . "British mathematician" . "1768Z"^^ . "1768-10-01Z"^^ . "1687-10-14Z"^^ . "Simson, Robert"@en . .