Philippe Verdy noted: > In the APL subblock of the Misc.Technical block,
The APL range (not "subblock") of the Miscellaneous Technical block is U+2336..U+237A, so the following characters are not part of that APL range: > the character "⌟" (U+231F) > is also a small bottom-right corner operator, and "⌋" (U+230B) is the second > (right) character of a floor operator, which can combine with "⌊" (U+230A) > the first (left) one in the pair. Its representative metrics seems quite good to > align it with the "n" exponent-order. On Windows, with MS fonts, they are > supported only with "Arial Unicode MS" (part of Office, not of core Windows > fonts). May be the Code2000 font has them. The floor characters exist however > in "Lucida Sans Unicode". I'll leave to the mathematicians the exercise of determining whether U+230B RIGHT FLOOR makes sense for the usage Patrick was talking about, but I don't think the quine corners (including U+231F) would be appropriate. > > Floor pairs of characters also exist in non-Unicode fonts like "Symbol", which > maps the floor pair at 0xEB and 0xFB (with the Symbol encoding, originally > defined in PostScript). But it seem that they were initially intended to create > tall square brackets, by joining 2 or more characters vertically. Yes, and those now have Unicode mappings, not to the floor and ceiling characters noted above, but to dedicated encodings of the PostScript glyph parts: 23A1 LEFT SQUARE BRACKET UPPER CORNER 23A3 LEFT SQUARE BRACKET LOWER CORNER 23A4 RIGHT SQUARE BRACKET UPPER CORNER 23A6 RIGHT SQUARE BRACKET LOWER CORNER --Ken
