Douglas Rumbaugh

Lecturer of Computer Science

Harrisburg University of Science and Technology

Biography

Douglas Rumbaugh is a member of the computer science faculty at a small, private university and a former IT contractor. He holds degrees in both computer science, and mechanical engineering. He enjoys programming, working with Unix-like systems, and teaching mathematics, computer science, and physical sciences. He also has more creative interests, such as writing, playing the trumpet, and ballroom dancing.

Interests

Systems Programming
Database Programming
Fluid Mechanics
Thermodynamics and Heat Transfer
Parliamentary Procedure

Education

M.S. in Mechanical Engineering and Mechanics, 2018

Lehigh University
B.S. in Computer and Information Sciences, 2016

Harrisburg University of Science and Technology

Recent Posts

Learning Vim as a Language: Nouns

One of the difficulties with learning how to use the Vim text editor is the number of commands that must be learned in order to edit text quickly. While only a minimal set of commands must be known to start using Vim, editing text will be more laborious than in a conventional editor until this set is expanded.

Douglas Rumbaugh

May 4, 2021 7 min read

How to Learn Vim

Vim is a monster of a program, and it isn’t alone. Linux is chock full of incredibly powerful applications like Vim, emacs, sed, awk, or even bash itself. And learning to use any of these tools well requires a lot of time investment.

Douglas Rumbaugh

May 23, 2020 6 min read

An Introduction to roff

roff, short for ‘run off’, is an old-school document formatting language that is readily available for Linux systems in the form of GNU roff (groff). In this article, I discuss how groff works, and how to use it to format simple documents.

Douglas Rumbaugh

May 22, 2020 21 min read

Newton-Pepys Problem

In this article, I would like to demonstrate an approach for solving relatively simple programming problems, of the sort you may encounter in a 100-level programming course in college. This technique doesn’t scale well to large applications, but it does seem a good approach to teach to new programming students.

Douglas Rumbaugh

Last updated on May 20, 2020 15 min read

The Joy of Transformations of Functions

Last year, I was first called upon to teach a section our college algebra course, MATH 120. It was an interesting experience, to say the least, and it opened my eyes to a few beautiful elements of the subject that I had never noticed before.

Douglas Rumbaugh

Apr 6, 2020 15 min read