Allan Wechsler

Allan C. Wechsler
Born	Unknown
Residence	Cambridge, Massachusetts
Nationality	American
Institutions	Unknown
Alma mater	MIT

Allan C. Wechsler is a Life enthusiast who was active in the early 1990s.

One of his most notable contributions to the cellular automata community was the Wechsler format in 1992, a system for encoding patterns that was later adapted into the modern apgcode format. Also in 1992, he used a computer search to prove that there were no one-cell-thick oscillators with periods 3, 5, or 7.

Outside of cellular automata, he also worked on developing the Lisp programming language at Symbolics in the 1980s. He later collaborated with John Conway and Richard Guy on extending the English naming system for large numbers, which is presented in The Book of Numbers.