I never figured the purpose of MathML. It's ugly/impractical to type as a text-based format. Verbose and inefficient compared to a binary format. A middle ground some people might like, but I can't stand.

I'd prefer one of these:

  - A human-writable text format that's displayed in a formatted way, eg TeX or MathJax
  - A binary format that represents structs and enums in code with a clear documentation of how it's packed and unpacked. That can be formatted for reading, and perhaps has a TeX-like API (or is just constructed programmatically using an API)

MathML, in contrast, provides neither the speed and small size of a binary format, while being unreadable and unwriteable.