Using a single set of units is an attractive idea that is only rarely implemented completely. Adding units suffixes helps to avoid the almost inevitable mixes.
incidentAngleRadians
Using whole words reduces ambiguity and helps to make the code self-documenting.
Use computearrivaltime(...)
Avoid comparr(...)
Domain-specific phrases that are more naturally known through their abbreviations or acronyms should be kept abbreviated. Even these cases might benefit from a defining comment near their first appearance.
html, cpu, cm
Names that are at least somewhat pronounceable are easier to read and remember.
The MATLAB distribution is written in English, and English is the preferred language for international development.