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Edgar R. Chavez
Independent Consultant
West Chester, Pennsylvania
 

Edgar Chavez is an independent consultant specializing in IBM mainframe computing, software quality assurance, and change management. He has more than 30 years of experience in the industry. He has worked on supervisory, project management, and technical assignments dealing with all phases of systems development and maintenance in finance, administration, transportation, information retrieval, and operating systems support.

Among others, Edgar’s assignments have included: change management consultation; customizing, updating, and enhancing a software configuration management system; designing and building online database maintenance and retrieval systems; designing, building, and maintaining order processing and sales reporting systems; designing and building an online system to manage technical documents; designing, building, and enhancing accounting systems; designing and building automated scripts to test order processing systems for Y2K compliance; and providing technical support to DEC-VAX system managers in more than 100 sites worldwide.

Edgar has experience with a variety of hardware platforms, operating systems, and programming languages.

He holds a B.S. degree in Applied Mathematics from North Carolina State University, and is bilingual in English and Spanish. He enjoys reading in a wide variety of topics, listening to classical music, and gardening. He and his wife live in West Chester, Pennsylvania.


     

The algorithm design manual (3rd ed.)
Skiena S.,  Springer International Publishing, Cham, Switzerland, 2020. 793 pp. Type: Book (978-3-030542-55-9)

Algorithms have been around for a long time, for example, the Euclidean algorithm to find the maximum common divisor of two integers is about 2400 years old. Nowadays, though, “algorithm” refers to instructions executed by computers. A...

 

Finite-state techniques: automata, transducers and bimachines
Mihov S., Schulz K.,  Cambridge University Press, New York, NY, 2019. 324 pp. Type: Book (978-1-108485-41-8)

The mathematical theory of automata is one of the great ideas of computer science, easy to state and understand, yet with great explanatory power and potential for problem solving....

 

 The Linux command line: a complete introduction (2nd ed.)
Shotts W.,  No Starch Press, San Francisco, CA, 2019. 504 pp. Type: Book (978-1-593279-52-3)

This is a wonderful introduction and tutorial meant to make readers comfortable and productive in the command line. It is not about system administration, Bash scripts, or any other tool, although they are all mentioned and covered at some length....

 

Modern Fortran explained: incorporating Fortran 2018
Metcalf M., Reid J., Cohen M.,  Oxford University Press, New York, NY, 2018. 522 pp. Type: Book (978-0-198811-88-6)

First introduced in 1957, FORTRAN was designed to be easier than an assembler language for writing algebraic equations on a computer. In this, FORTRAN was spectacularly successful....

 

Computer programming with C++
Pimparkhede K.,  Cambridge University Press, New York, NY, 2017. 1014 pp. Type: Book (978-1-316506-80-6)

I cannot recommend this book under any circumstances--not as a textbook for classroom instruction, not as a reference in a university library, and not for self-study. The book has many faults, which I will summarize under three overlapping gr...

 
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