William Jack FRSE (29 May 1834 – 20 March 1924) was a Scottish mathematician and journalist.
[1] He was born on 29 May 1834 in Stewarton in Ayrshire the son of Robert Jack of Irvine.
He was educated at Irvine Academy, going on to study mathematics at the University of Glasgow, graduating with an MA in 1853.
He left in 1876 to run Macmillan & Co, a London publisher,[2] and in 1879 joined the staff of Glasgow University as Professor of Mathematics.
In his final working years he lived on the campus of the University of Glasgow, at 10 The College.