I was thinking about.. stuff..
When it comes to bra sizes, there are many different design standards and sizing systems. In Continental Europe there's an often used scale that is simply a letter between [A - Z], where each letter represents a 2cm difference between underbust and bust circumference.
But for example in the UK, the scale might go something like this:
[AA, A, B, C, D, DD, E, F, FF, G, ... ] (note the double-letters), where each step of the scale is a 1 inch difference in bust size.
There are many variations to these systems, but mosten often they include sizes that are represented by double letters, e.g. "AA", "DD", etc.
NOTE: Exceptions to this would be the aforementioned system that is in use in Continental Europe, and a system that is sometimes (rarely) used in the US, where these double-letter sizes are instead denoted as XN, where X is a letter between A-Z, and N is a number between 1 - 9, e.g. DD = D2.
Now I was wondering, in mathematical contexts you'd pronounce "DD" as "D times D", or "D squared". Would there be an etymological reason as to why cup sizes are pronounced in a way that clearly goes against this well established mathematical standard?
Shouldn't "Double D" refer to "D2", and "D squared" to "DD"?