Concepts familiar from grade-school algebra have broad ramifications in computer science.
Doris S. Evans, former head of MIT's alumni office, died Feb. 18 at the Sawtelle Hospice House of Reading. She was 100.
Born in Calais, Maine, in 1906, Evans moved to Boston at a young age. She enjoyed reading and listening to music.
She is survived by a niece, Corinne Magnuson of Melrose; two nephews, Donald Leeman and Richard Leeman of Clearwater, Fla.; and many great- and great-great-nieces and nephews.
Donations may be made to the VNA of Middlesex-East Sawtelle Family Hospice House, 360 Haverhill St., Reading, MA 01867.