Douglas B. Rumbaugh

Graduate Research Assistant / Ph.D. Student in Computer Science and Engineering

Penn State University

Biography

Douglas Rumbaugh is a graduate student in computer science, who has formerly been a member of of the computer science faculty at a small, private university and an 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

Database Systems Programming
Operating Systems Programming
Fluid Mechanics
Physical Chemistry
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

Signal is Dropping SMS Support on Android

Today, Signal users everywhere (or at least this Signal user), were greeted by the following message on sending an SMS message, You will no longer be able to send SMS messages from Signal soon.

Douglas Rumbaugh

Oct 27, 2022 5 min read

The Counter-Intuitive Nature of Memoryless Distributions

Probability is a tricky subject, and sometimes our initial ideas about how probabilistic systems behave are not reflected in the mathematics. It’s worth taking care to ensure that we properly understand probability distributions when we are modeling problems, as the results can sometimes be quite counter-intuitive.

Douglas Rumbaugh

Last updated on Oct 3, 2022 5 min read

In Defence of Imperial Units

One thing that I have noticed over years spent on the Internet is that there is a seemingly large, and very vocal, group of people who spend a lot of time and energy getting worked up about measurement systems.

Douglas Rumbaugh

Last updated on Sep 28, 2022 13 min read

Data Structures: The Bit Array

A bit array is a simple data structure that allows you to compactly represent an array of booleans, but constructing one requires some low-level binary manipulations that you may not be familiar with. Let’s walk through the basic principles, and mock up a simple example of a bit array.

Douglas Rumbaugh

Last updated on Sep 28, 2022 13 min read

The importance of std::endl in C++

The semester is wrapping up, and so like many students, I’m rushing to finish projects that I could have started weeks ago, but elected not to. And, along the way, I made an important discovery about how important std::endl is if you’re using std::cout in C++.

Douglas Rumbaugh

Last updated on Sep 28, 2022 3 min read