The EECS department lost two beloved faculty emeriti this month: Jean Paul Jacob on April 7 and Elwyn Berlekamp on April 9. Jacob was born in Brazil and spent a number of years working in industry before attending Berkeley (MS ’65/PhD ’66, advisor: Elijah Polak). He was a world expert on Informatics and had a career at IBM that spanned over 40 years. He returned to Berkeley as Faculty-in-Residence in 1971 where he actively promoted diversity initiatives and helped found the Center for Information Technology Research in the Interest of Society (CITRIS) in 2001. Jacob won the EE Distinguished Alumni award in 1992. Berlekamp was known for his work in coding theory and was one of the founders of combinatorial game theory. He co-invented the Berlekamp-Welch algorithm (which finds the shortest linear feedback shift register for a given binary output sequence) and the Berlekamp-Massey algorithm (which is used to implement Reed–Solomon error correction). He bought out the controlling interest in Axcom Trading Advisors in 1989 and vastly increased the returns after rewriting the trading algorithms: returns to all investors in 1990 exceeded 55%, net of all trading costs and performance fees. He sold his interest in Axcom in December 1990.