Show HN: A custom font that displays Cistercian numerals using ligatures(bobbiec.github.io)
70 pointsby bobbiechen9 hours ago4 comments
  • thih9an hour ago
    > Sometimes (not always), this makes addition visual

    I guess this would always work with tally marks. Is there a more complex number system where visual feedback like this always works?

    For a taste of this in Arabic numerals consider a 7 segment font, with 1 aligned to the left; we’d have “5+1=6”.

    • Someone10 minutes ago
      > I guess this would always work with tally marks.

      This script overlays the marks, it doesn’t put them side by side. So, in the strict sense, this does not work with tally marks. If you write a tally mark on top of another tally mark, you won’t get two tally marks.

      > Is there a more complex number system where visual feedback like this always works?

      No. The “+1” operator would have to add the encoding for the number one to whatever number you apply it to, so starting at 1, the numbers would have to grow larger every time.

      (Similarly, since “+2” must be identical to applying “+1” twice, it must add whatever “+1” adds twice, “+3” must do that thrice, etc)

    • fluoridation12 minutes ago
      They're not tally marks, it's just a different way of encoding a positional number system representation. You would get the same effect if instead of writing zeroes you left empty spaces. 2_4 + 1_3_ = 1234. If you were writing in columns you would not need the additional glyph.
  • mmooss2 hours ago
    I've thought, in other contexts too, how much easier innovation in script (in writing, glyphs, etc.) is when handwriting instead of printing text. Anyone could create their own Cistercian shorthand - and Medieval writers did use all sorts of shorthand.

    Print requires a pre-composed set of glyphs with exceptions that are, I suppose, expensive (i.e., custom made by the printer). Typing right now on your computer, how easily can you create a custom glyph and share it? Look what the OP must do - stretch the bounds of typeface function, something few people are equipped to do.

    If HN comments were hand written, each commenter could create custom glyphs on the fly. We could also draw diagrams and pictures, musical notation, draw lines pointing to different taxt from others - gloss each others comments.

    Thinking about it (and wandering onto a tangent): If computers could process handwriting the same way as text encodings, would that be preferrable? I can't type as fast as I write but partly because I type far more. I could do so much more with a pen; it would be interesting to try. How well do LLMs handle handwriting recognition?

  • readthenotes16 hours ago
    In a high trust environment, I suppose easy addition is helpful. Probably not best used in loan agreements.
    • crazygringo5 hours ago
      Fun fact: Chinese has separate "financial numerals" precisely to prevent one digit being changed to another, the way that could be easily done with regular numerals like turning 一 (1) into 三 (3) or 十 (10). A lot harder when they look like 壹, 叁, and 拾 instead.

      https://en.wikipedia.org/wiki/Chinese_numerals#Financial_num...

      • spragl14 minutes ago
        Another fun fact: German registration plates use a font for which it is difficult to change one digit to another, for example by adding a bit of tape. The font is called FE-Schrift. https://en.wikipedia.org/wiki/FE-Schrift
      • lovich2 hours ago
        Neat, you made me one of the 10 thousand today.
  • mmooss3 hours ago
    The glyphs are really facinating; thank you. Has anyone proposed Unicode code points for them?

    Are there more efficient representations of numbers - or anything else - in terms of bits per glyph? The Cistercian numarals encode a bit over 13 bits per glyph, of course. Maybe forms of Chinese - though I think most words require 2 characters - or another ideographic language? But also is there anything with Cistercian cognitive efficiency? You can learn it in minutes.

    I wonder why the didn't make 3 into F. They follow two other patterns for 3 then 4 glyphs: 3,4,5 have hypotenuses and 6,7,9 have the short parallel line. Also, they use other glyphs that approximately match Latin letters - e.g. 9 (P), 100 (L), 900 (b), 9000 (d) - so that wouldn't deter them.