See that’s the other thing about me: don’t know math very well. I had to go on Wikipedia to discover that this means the union of numeric computing and string wrangling is a subset of technical computing. Cultures in conflict! 
In my particular case, I’m sort of fixing broken metadata in a library catalog. I’m just some kind of digital humanities janitor. It doesn’t feel like technical computing to me, but maybe I need to broaden my definition.