The fields of mathematics, computer science, and information systems complement each other with a synergism that carries over into the relationships between students and faculty members in the department. We stress developing the student’s ability to think analytically and independently in all problems whether or not they are mathematical. We pursue developing the student’s aptitude for mathematical reasoning so that the student will be prepared for the pursuit of knowledge and truth beyond the boundary of the classroom. As the department offers its courses, it strives to be a place where students and faculty can study and learn in a cooperative, supportive environment.

Computer Science, Information Systems & Mathematics programs

Bachelor's Degrees in Computer Science, Information Systems & Mathematics

  • Major in Computer Science (B.S.)
  • Major in Computer Science (B.A.)
  • Major in Information Systems (B.S.)
  • Major in Mathematics (B.A.)
  • Major in Mathematics (B.S)
    • with specializations available in: pre-actuarial science

Minors in Computer Science, Information Systems & Mathematics

  • Computer Science
  • Information Systems
  • Mathematics
View the Course Catalog for degree requirements and courses offered.
Computer Science, Information Systems & Mathematics Faculty
Reza O. Abbasian
Professor; Department Chair
Dr. Reza Abbasian joined Texas Lutheran in 1983. He holds degrees in both Engineering and Mathematics – B.S. General Engineering, Abadan Institute of Technology, M.S. Mechanical Engineering (Dynamical Systems), University of Texas at Austin, M.A. Mathematics (Numerical Analysis), University of Texas at Austin and Ph.D Engineering Mechanics (Computational Fluid Dynamics) from University of Texas at Austin.
 Dr. Abbasian’s primary areas of research are computational mathematics and use of Computer Algebra Systems (CAS) in teaching mathematics. He has presented and published extensively in his areas of research including more than 25 journal articles and published proceedings. He attends several conferences each year including the annual joint Mathematical Association of America (MAA)American Mathematics Society (AMS) conference and International Conference on Technology in Collegiate Mathematics (ICTCM). He and his colleague Dr. John Sieben are frequent presenters at ICTCM. He has co-authored a textbook in the use of CAS in multivariable calculus, entitled “Vector Calculus With Maple”.
Dr. Abbasian is a member of MAA and has served as the chair and secretary/treasurer of MAA-Texas Section.  He is also a member of The American Statistical Association (ASA).
A two-sport letter winner in college, Dr. Abbasian competed for many years in the AA division of the U.S. Volleyball Association (USVBA) and he still enjoys playing sports. He is fluent in three languages , has travelled extensively and is an amateur movie buff.

Cathy Beicker
Visiting Instructor of Computer Science
Cathy A. Beicker began working at TLU in 1979. She worked part-time for Texas Lutheran while she taught math and computer science in public middle/high schools. She received her B.S. in Education with a major in Math and a minor in Computer Science in 1976. By Aug 1978, she received her M.A. in Math and Counseling Education. Mrs. Beicker joined TLU full time in 2012, after retiring from public education.

Cathy Beicker has taught at Randolph AFB(Schertz, TX), Seguin ISD(Seguin, TX), University of the Incarnate Word(San Antonio, TX), and Central Texas Technology Center(Clear Springs, TX).

Cathy Beicker’s personal interests lie in community work. She has been President of several community organizations--namely, the Seguin Sports Booster Club and the Seguin Education Foundation.

Rebecca Clark
Rebecca Clark, lecturer; B.A., B.S., Texas Lutheran University; master of science from Texas State University-San Marcos.

William Hager
Assistant Professor

Sam Hijazi
Associate Professor
Dr. Sam Hijazi is a full-time Associate Professor at Texas Lutheran University. Joining the University in 2008, he teaches many topics including courses in Database Design, Networking, Web Programming, Information Systems, and Programming classes.
Dr. Hijazi earned a Bachelor of Science Degree in Computer Science and Mathematics, double major, in 1989 from Towson State University. In 1992, He earned a Master of Arts in Economics from Morgan State University. He moved to Florida Keys in 1993 to start teaching at FKCC. In 1998, he earned his doctoral degree in Information Systems from the University of Sarasota.
Dr. Hijazi has researched and presented multiple topics including: quality learning using distance and blended teaching, creative and critical applications in the information systems field, learning organizations and knowledge management. Dr. Hijazi also has given seminars on effective leadership, balancing political and result performance in the information technology field, and managing change. He is a true believer in a meat-learning approach, learning about learning. He applies effective and quality teaching in all modes: face-to-face, blended and/or distance learning. He is highly involved in community computer and information literacy. He is also an advocate to help reduce the digital gap within our community and the surrounding area.
Dr. Hijazi has been on the ACET ( Association for Computer Educators in Texas) Board of Directions since 2010. ACET provides the opportunity for educators to share methods, ideas, producers and any materials to promote high level of competence in educational computing and information Systems. Dr. Hijazi also is associated with SALT (Society for Applied Learning Technology). He recently presented his latest modification to his Knowledge Management Model during February, 2011 conference. SALT is an international organization that bring senior professionals and decision makers from academia, industry, military and government to share the latest developments and innovations in training and learning technologies. Dr. Hijazi is a member of AIS (Association for Information Systems) organization.
Dr. Hijazi is an avid reader of computer and information systems journals. He has two smart and good looking children Esam and Rhoda. He is married to Dr. Mariam Alatrach.

Alicia Luna
P/T Instructor

Larry Noggle
P/T Assistant Professor
Larry W. Noggle, assistant professor; master of science from The Ohio State University; doctorate (Ph.D. in nuclear engineering) from The Ohio State University.
Dr. Noggle's interests include mathematics, theology, U.S. Defense Department Major Acquisition Program Management, U.S. Defense Department Research and Development, and the U.S. Defense Department Acquisition Process.

Betseygail Rand
Associate Professor
Betseygail Rand, assistant professor, doctorate (Ph.D. in mathematics) from the University of Texas in Austin.
Dr. Rand's areas of research is dynamical systems and geometry, with a specific interest in the theory of tiling spaces.

Michael Riggins
Assistant Professor
Born in Fort Meade Maryland and raised in the Rio Grande Valley. He received his Bachelors, Masters, and Doctorate degrees in Civil Engineering from Texas A&M University. He taught Engineering Mechanics at Colorado School of Mines for seven years at which time he also received a Master of Science degree in Statistics from University of Northern Colorado. He then worked as a Research Engineer with Sandia National Laboratories in Albuquerque New Mexico for sixteen years. He joined the TLU faculty as an Adjunct Assistant Professor of Mathematics in 2007.

He and his wife Patricia, an Episcopal priest, live in New Braunfels. He enjoys water activities, working outdoors, and Texas history.

Rodrick Shao
Instructor; Instructional Technology Support

John Sieben
John T. Sieben holds the rank of professor in the department of Mathematics and Computer Science. He has earned a master of science degree from University of Missouri at Kansas City in mathematics, a second master of science from Texas State University in computer science, and a doctorate (Ph.D.) in mathematics from the University of Missouri at Kansas City.

Dr. Sieben teaches in the areas of data modeling, applied calculus, differential equations, introductory and mathematical statistics. He is a Fellow of the Texas Academy of Science and has served as Chair of that organization. He is also a member of the Mathematical Association of America and has chaired the Texas State Section of that organization.

Dr. Sieben’s CV list 10 publications and 34 presentations. Currently he has is doing four presentations a year at national and regional conferences. His most recent research interests are regression theory, and math pedagogy, especially the content of a flipped classroom.

Besides being a Professor of Mathematics, Dr. Sieben in a SCUBA instructor. He teaches introductory courses, Nitrox, Underwater Photography, and Rescue. He is interested in photography above and below the water and enjoys cycling.

Linda Wilson
Linda F. Wilson, professor, master of science and doctorate (Ph.D. in electrical and computer engineering) from the University of Texas at Austin .
Dr. Wilson's areas of interest include various aspects of network security and distributed computing.