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https://github.com/gildas-lormeau/SingleFile It encodes image media in base-64 and produces an HTML single file.

And, if I want to remove parts of the page, https://chrome.google.com/webstore/detail/print-edit-we/olnb... which can save in MHTML format (one file, a zip archive container).

Another alternative is the paid level of pinboard.in, which essentially makes an archive copy of every page you bookmark and tag.

(And for all I know, there may be self-hosted versions of pinboard.in with the archive feature.)

I believe it's for a superscripted 2 after abbreviations of units of measure, denoting area, e.g. centimeter squared, metre squared, etc.

Yes, in 1973-74 I used to submit college FORTRAN programs to an IBM 360 sixty miles away via an IBM 2741 Selectric console http://en.wikipedia.org/wiki/IBM_2741 that was connected to an IBM modem device/leased line. We used a line-oriented editor of a remote job entry system to create virtual 80-column decks of cards ("jobs") that included the job control language as well as the programs themselves. In the second semester we exchanged the Selectric's regular type ball for one with APL symbols (the 2741's keys had both regular and APL symbols), and used IBM's time-shared 360 APL system via the 2741. This was considerably more fun than FORTRAN because of a) the immediate interactivity and b) APL's amazingly compact notation. APL one-liners were like nothing before or since in computer languages.