IEEE TRANSACTIONS ON COMPUTERS, OCTOBER 1972

Contributors.B. D. Carroll (S'61-M'68) was born in Gates-ville, Tex., on October 28, 1940. He receivedthe B.S.E.E., M.S.E.E., and Ph.D. degreesfrom the University of Texas, Austin, in 1964,1966, and 1969 respectively.

In 1964 he joined the Apparatus Divisionof Texas Instruments, Dallas, Tex., where hewas involved with the design of digital cir-cuits. From 1964 to 1968 he served as a Re-search Assistant in the Department of Elec-trical Engineering, University of Texas. From

1968 to 1970 he served as a Project Aerosystems Engineer for GeneralDynamics, Fort Worth, Tex. In 1970 he joined the faculty of theDepartment of Electrical Engineering, Auburn University, Auburn,Ala. His current research activities include work in the areas of faultdiagnosis of digital systems, airborne digital systems, and thresholdlogic.

Dr. Carroll is a member of Tau Beta Pi, Eta Kappa Nu, AlabamaAcademy of Science, and the Association for Computing Machinery.

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K. M. Chandy (M'72), for a photograph and biography see page 221of the February 1972 issue of this TRANSACTIONS.

Clarence L. Coates, Jr. (S'43-A'45-M'58-SM'62), for a photographand biography see page 412 of the April 1972 issue of this TRANSAC-TIOffS.

Jerzy Frackowiak was born in Katowice,Poland, on August 20, 1941. He receivedthe M.S. degree in electrical engineering andautomation in 1964 and the D.Sc. degree in1970 both from the Silesian Technical Uni-versity, Gliwice, -Poland.

From 1964 to 1968 he was a Science As-sistant at the Automation Section of theSilesian Technical University. From 1968 to1970 he was a Design Engineer in the DesignOffice for Steel Industry where he was dealing

with digital control systems for processes in the steel industry. Heis now with the Department of Automation and Computer Science,Silesian Technical University. His principal field of interest is switch-ing theory and its application to digital systems and logical design.

Donald D. Givone (S'57-M'64) was born inPaterson, N. J., on July 10, 1936. He received

the B.E.E. degree from Rensselaer Polytech-nic Institute, Troy, N. Y., in 1958, and the

M.S. and Ph.D. degrees in electrical engineer-ing from Cornell University, Ithaca, N. Y., in1961 and 1963, respectively.

Since 1963 he has been a member of thefaculty of the Department of Electrical Engi-neering, State University of New York atBuffalo, Buffalo, N. Y., where he is presently

an Associate Professor. His research effort has been in switching

circuit theory. He is the author of the textbook Introduction toSwitching Circuit Theory (New York: McGraw-Hill, 1970).

Ming-Kuei Hu (S'48-A'52-SM'56) was bornin Anhwei, China, on May 25, 1918. He re-ceived the B.E.E. degree from National Cen-tral University, Chungking, China, in 1941,and the Ph.D. degree from Oregon State Uni-versity, Corvallis, in 1951.

He then became a Research Assistant Pro-fessor in Electrical Engineering at SyracuseUniversity, Syracuse, N. Y., where he is nowa full Professor in the Department of Electri-cal and Computer Engineering. He has done

research in power machinery, electromechanical devices, high-voltage discharge phenomena, electromagnetic and antenna theory,electronic computers, switching theory, pattern recognition, auto-mata theory, holography, and biological information processing sys-tems.

Dr. Hu is a member of the American Physical Society, theAmerican Mathematical Society, and the Association for ComputingMachinery.

Alexander Iosupovicz (S'68-M'70) was bornin Bucharest, Romania, on February 14, 1938.

i He received the B.Sc. and M.Sc. degrees inelectrical engineering from the Technion,Israel Institute of Technology, Haifa, Israel,in 1964 and 1966, respectively, and the Ph.D.degree in systems and information sciencefrom Syracuse University, Syracuse, N. Y.,in 1970.

From 1965 to 1967 he worked with North-ern Electric Company, Research and Develop-

ment, Ottawa, Ont., Canada, where he was engaged in the develop-ment and design of the central processor of an electronic telephoneswitching system. In 1970 he joined the faculty of Rensselaer Poly-technic Institute, Troy, N. Y., where he is an Assistant Professor ofSystems Engineering, and a member of the Computer Science Com-mittee. He teaches courses in logic design, switching and finiteautomata theory, and is presently interested in logic design, switchingtheory, and fault-tolerant digital systems.

Dr. Iosupovicz is a member of the Association for ComputingMachinery and Sigma Xi.

J. David Irwin (S'60-M'63-SM'71) was bornin Minneapolis, Minn., on August 9, 1939. Hereceived the B.E.E. degree from Auburn Uni-versity, Auburn, Ala., in 1961, and theM.S.E.E. and Ph.D. degrees from the Uni-versity of Tennessee, Knoxville, in 1962 and1967, respectively.

He joined the University of Tennessee in1961 as a Graduate Assistant in the Depart-ment of Electrical Engineering. He becamean Instructor in 1962 and a member of the

Research Staff in 1964. In 1967 he became a member of the TechnicalStaff at Bell Telephone Laboratories, Inc., Holmdel, N. J., and wasmade a supervisor in 1968. He is currently an Assistant Professor ofElectrical Engineering at Auburn University.

IEEE TRANSACTIONS ON COMPUTERS, OCTOBER 1972

Dr. Irwin is a member of the American Society for EngineeringEducation, the Association for Computing Machinery, the AirPollution Control, Association, the Alabama Society of ProfessionalEngineers, Sigma Xi, Phi Kappa Phi, Tau Beta Pi, Eta Kappa Nu,and Pi Mu Epsilon.

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Robert P. Roesser (S'67-M'69) was born inBradford, Pa., on August 1, 1942. He receivedthe B.S., M.S., and Ph.D. degrees, all inelectrical engineering, from the State Uni-versity of New York at Buffalo, Buffalo, N.Y.,in 1964, 1967, and 1970, respectively.

While at Buffalo he held a GraduateAssistantship, teaching various laboratorycourses in the Department of Electrical Engi-neering. After receiving his Ph.D. degree, hewas employed in 1970 as an Electrical Engi-

neer at Houdaille Industries, Electronics Division, where he wasinvolved in the design of numerical and computer controls. In 1971he joined the Department of Electrical Engineering, Wayne StateUniversity, Detroit, Mich., as an Assistant Professor. He is presentlyteaching courses and is engaged in active research in digital systemsthere.

Robert A. Russell was born in Youngstown, Ohio, on September 7,1946. He received the B.S. degree ftom Wichita State University,Wichita, Kans., in 1968, and the M.A. degree from Washington State

University, Pullman, in 1970.He is currently a Doctoral Student and

Assistant Instructor in the Department ofGeneral Business, University Of Texas, Aus-tin. His current research interests include op-timization in networks, teleprocessing networkdesign, and special classes of linear and mixedinteger programming problems.

Mr. Russell is a member of Pi Mu Epsilonand Phi Kappa Phi.

John M. Thorington, Jr. (S'67-M'71) wasM born in Montgomery, Ala., in 1943. He re-

ceived the B.E.E., M.S., and Ph.D. degreesin electrical engineering from Auburn Uni-versity, Auburn, Ala., in 1965, 1967, and 1971,respectively.

While at Auburn University he was aTeaching and Research Assistant in the De-partment of Electrical Engineering. He held aPublic Health Service Fellowship from 1966to 1967. From 1967 to 1970 he was with the

Southwestern Radiological Health Laboratory, Las Veegis, Nev. In1971 he joined the technical staff of Bell Telephone Laboratories,Inc., Greensboro, N. C., where he is currently involved in researchand development of special-purpose real-time software systems.

Dr. Thorington is a member of Phi Kappa Phi, Tau Beta Pi, andEta Kappa Nu, and is an associate member of Sigma Xi.

Book ReviewsRICHAED R. SHIVELY, Book Reviews Editor

B72-17 Computer Analysis of Circuits-D. J. Comer. (Scranton,Pa.: International Textbook, 1971, 356 pp., $12.95.)

Practitioners of computer-aided network analysis are divided intotwo groups. One group seeks the most effective application of pack-aged programs to problem solution while the other group is chieflyinterested in the algorithms that underlie these programs or that can

provide the basis for the creation of new programs.

D. J. Comer's book, Computer Analysis of Circuits, should bewelcomed by both groups. This is because Comer does not assume

that the reader comes to the subject with a high level of mathe-matical sophistication. As a result of this approach, the book providesan excellent introduction to further study for the reader who wishesto develop his own CAD algorithms and programs. At the same time,the application-minded reader will acquire a useful background thatshould help him to appreciate the utility and limitations of packagedprograms.

Chapter 1 comprises a brief review of the properties of matricesand determinants. Elementary matrix operations, application ofCramer's rule to matrix inversion, and Gaussian reduction are dis-cussed. In Chapter 2 matrix theory is extended to bring in the geo-metrical concepts of vector space, basis vectors, orthogonal bases,and linear transformation between bases. The eigenvector equationis set forth and the concept of eigenvalues introduced. This discussionintroduces the idea of matrix functions. The Cayley-Hamiltontheorem is stated and is used to evaluate exp [At]. Matrix diagonali-zation is treated next giving rise to the problem of multiple eigen-values. The resolution of this problem requires introduction of theJordan canonical matrix.

In Chapter 3 Comer provides a brief survey of network topology.The concepts of the tree and its branches, links, cut sets, and tiesets are introduced, together with the corresponding topologicalmatrices. Applications of these matrices to network analysis are

shown using node voltages and formulating the nodal admittance

In this section, the IEEE Computer Society publishes reviews of books in the computer fieldand related areas. Readers are invited to send comments on these reviews for possible publica-tion in the Correspondence section of this TRANSACTIONS. Please address your comments andsuggestions to the Book Reviews Editor: Richard R. Shively, Bell Telephone Laboratories,Inc., Whippany, N.J. 07981. The Computer Society does not necessarily endorse the opinionsof the reviewers.

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