Robert Baldwin Hayward (7 March 1829 – 2 February 1903) was an English educator and mathematician.
[1] Hayward was a mountain climber and an original member of the Alpine Club from its foundation in 1858, withdrawing in 1865.
He was elected Fellow of the Royal Society on 1 June 1876, in recognition of his work on the method of moving axes.
in like manner as functions of the excircular or hyperbolic sector IOP, the analogy between circular and excircular functions is complete.Introduction of trigonometric ratios by reference to hyperbolc sector area was also advocated by R. Levett and Charles Davison.
He had issue two sons and four daughters, including Sir Maurice Henry Weston Hayward, K.C.S.I., colonial administrator in India.