It's probably similar to other words with identical meanings and different spellings, such as
humor = humour
The Oxford English Dictionary, the ultimate source for all English words, says: "Math. is used as an abbreviation in written English in the U.K. but not in speech, the normal form being Maths".
More musings on nerd recreation and personal train-of-thought:
I'm American, but I often place punctuation marks outside the quotation marks because I got into that habit at a very young age when programming. If I put punctuation inside the quotation marks while coding, it's treated as a textual string rather than as an operator (as you all know, I'm sure). (In this case it was merely copypasta (copied and pasted) from another site and to pay respect to the OED, which, as a product of England, probably does it that way by default.)
That's probably also why I don't really have a problem with nested parenthesis (rather than the more frequently used in-print method, alternating parenthesis and square brackets [..(..[..]..)..], or whatever your preferred style guide indicates). I've noticed a lot of punctuation reduction in printed texts over the past 20 years. That might be another change resulting from this online world in which we now live.
The largest change seemed to begin around 1997-'98 when the "average human population" began to invade the internet, adding to positive and negative diversity of all kinds.
It had formerly been a place where you could go and be pretty certain you were talking to other "smart people," among nearly all of whom there was a mutual respect of sorts. I'm sure most people reading this—who are not too young—will remember that with more alacrity than I can. That
mutual respect-of-sorts has long since been tossed aside and allowed (or forced) to decay where it was discarded, a place on the Information Superhighway where the smoothness of the road gave way to potholes and bumpy rides, later shifting to exponentially increasing speeds and capacity with its underlying, variably pock-marked highway haunted by malware-marauders (malauders?
malhawkers?*) and overlaid with advertisements, phishing bait of all types (each containing a nasty hook tied to a line with nearly infinite tensile strength), traffic diversions, and dead-ends that redirect the oblivious innumerable masses of packets/vehicklets down undesired pathways where they gain additional unwanted passengers (barnacles, leeches, etc.) and have less control over their packet-vehicles than they think, while still achieving transfer speeds high enough and ping times low enough that they don't notice the holes and gaps, misdirected pathways, and malware tunnels (or troll-guarded bridges) through or over which they've traveled before arriving at their destinations.
*I derive malhawkers from malware + jayhawkers, the latter a term used during the US Civil War, described here:
The jayhawkers are thieves. They plunder indiscriminately from all parties. In the same band are both rebel and Union men. [Henry M. Painter, "Brief Narrative of Incidents in the War in Missouri," Boston, 1863.]
(source)
Most of the '90s and until 2008-or-so were, for me, a more-confused
SMEAR than Windows 10 will ever be. Come to think of it, every time in my life which has consisted of more than a few days or weeks that were similar to each other is like that. 2020, while different for most people (from what I've read), has not really been different for me from any year preceding it (after the first quarter of 1990) except for certain elements, such as how I didn't ride my bicycle as much during the summer as I usually do; it's my primary mode of transportation, so I've been overweight and relatively out-of-shape.
In chatrooms and on message boards like this, we tend to type things as we say them, making these places more a physical representation of spoken dialog(ue) than a collection of more-formal written messages, like BBSs or USENet, places that served a relatively tiny portion of all humans and were thus easier to moderate by Sysops and users (and whatever they used for moderation on CompuServe, GEnie, and the like).
Typing things as we say them can lead to problems (as I see it, though many probably don't) if we fail to use punctuation in the manner that so many "youngsters" do nowadays, since that leads to strings of run-on sentences and/or sentences with ambiguous meanings. You'd think they would have learned those basic elements of sentence construction as children, but I guess the digital elements of the world made a larger (or deeper and longer-lasting) impression on their brains than did the scholastic elements.
Another hypothesis: Maybe this is how the language is changing. The English language is always changing and evolving, making it an example of something for which the only constant is change. The speed at which this latest evolution of the language is occurring is yet another reason why the OED will probably be under constant revision for the foreseeable future.
There are certain words for which I typically prefer to use the UK spelling, something I think is a result of childhood reading and re-reading of many books and stories by Herbert George "H.G." Wells, Clive Staples "C.S." Lewis, and Jonathan Ronald Reuel "J.R.R." Tolkien, among others.
I even read some (I can't remember which!) of W. Shakespeare's plays (textbooks my mom had saved from University), something I'm glad I did then rather than later, because there was a LOT of sexual innuendo that went over my young head, with its childhood naiveté. I did not read those multiple times as I did the more modern English writings of the authors I listed previously. However, there are a lot of Shakespearean references and quotes in all of Star Trek, including many of the main actors, who were Shakespearean actors before acting in television (and motion picture) Sci-Fi collectively known as Star Trek.
You'll recall that one has not
really experienced Shakespeare until one has heard it in the original Klingon.
