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Re: Musical notes...

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Charlie Roberts <croberts@gmail.com> wrote or quoted:
>As a fossil, I cannot think of any other way to do such stuff unless
>there is no option. I prefer it in all my personal documents (my
>thesis was done that way, on an electric typewriter, equations
>and all). 

  I'm working on a Python program in my leisure to typeset paragraphs
  that way.

  Example input:

An expression like $x^y$ is called a power.
You can imagine specific values for $x$ and $y$,
as in $3^2$ or $2^3$.

  Example output:

                    y                                            
An expression like x  is called a power. You can imagine specific
                           2     3 
values for x and y, as in 3  or 2 .

  However, for now, my program only supports digits 0-9, letters
  a-z, and exponentiation "^" in formulas. This is a large
  project with paragraph wrapping and document formatting that
  still needs a lot of work before it is ready for practical use.

  Also not ready for most uses is my ASCII-art plotter, but here's
  an example output of an ellipse:


                                     ....''--'..
                                  ..''         `.
                               ..''             \.
                             ..'                 '
                           ..'                   ..
                         ..'                     .'
                        .'                       .
                       .'                        .
                     ..                          .
                    .'                          .'
                   .'                          ..
                  .'                           .
                 .'                           .'
                .'                           .'
               .'                           ./
               .                           ./
              .'                          .'
              .                         ..'
             .                         ..
             .                        .'
             .                      ..'
             '                    ..'
             .                  ..'
             '.               ..'
              \.           ..''
               `..     ...''
                  '-'''

  The client code to draw this ellipse is:

def plot_ellipse(img, slope, W, H, pad_w, pad_h):
    cx = pad_w + W // 2
    cy = pad_h + H // 2
    a, b = W // 4, H // 3
    theta = math.radians(30)

    coords = []
    for k in range(720):
        t = 2 * math.pi * k / 720
        ex, ey = a * math.cos(t), b * math.sin(t)
        rx = ex * math.cos(theta) - ey * math.sin(theta)
        ry = ex * math.sin(theta) + ey * math.cos(theta)
        px, py = cx + rx, cy - ry
        pxi, pyi = int(round(px)), int(round(py))
        coords.append((pxi, px, pyi, py))
    render_shape(img, slope, coords)

  "render_shape" is the call that renders the ellipse in ASCII
  while taking into account the slope at every point and choosing an
  appropriate character depending on the "sub-pixel" (smaller than a
  char) position and the slope ("/" is only used when its slope is
  similar to the slope of the curve at this point, for example).

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Musical notes... David Entwistle <qnivq.ragjvfgyr@ogvagrearg.pbz> - 2026-05-27 08:20 +0000
  Re: Musical notes... James Dow Allen <user4353@newsgrouper.org.invalid> - 2026-05-27 12:58 +0000
    Re: Musical notes... David Entwistle <qnivq.ragjvfgyr@ogvagrearg.pbz> - 2026-05-27 18:06 +0000
      Re: Musical notes... David Entwistle <qnivq.ragjvfgyr@ogvagrearg.pbz> - 2026-05-28 10:15 +0000
  Re: Musical notes... ram@zedat.fu-berlin.de (Stefan Ram) - 2026-05-27 16:25 +0000
    Re: Musical notes... James Dow Allen <user4353@newsgrouper.org.invalid> - 2026-05-27 17:10 +0000
  Re: Musical notes... James Dow Allen <user4353@newsgrouper.org.invalid> - 2026-05-28 12:30 +0000
    Re: Musical notes... HenHanna@NewsGrouper <user4055@newsgrouper.org.invalid> - 2026-05-28 18:21 +0000
    Re: Musical notes... msb@vex.net (Mark Brader) - 2026-05-28 18:50 +0000
    Re: Musical notes... David Entwistle <qnivq.ragjvfgyr@ogvagrearg.pbz> - 2026-05-29 17:19 +0000
    Re: Musical notes... Charlie Roberts <croberts@gmail.com> - 2026-05-29 15:48 -0400
      Re: Musical notes... ram@zedat.fu-berlin.de (Stefan Ram) - 2026-05-29 20:59 +0000
        Re: Musical notes... James Dow Allen <user4353@newsgrouper.org.invalid> - 2026-05-30 12:07 +0000
          Re: Musical notes... James Dow Allen <user4353@newsgrouper.org.invalid> - 2026-05-30 12:25 +0000
            Re: Musical notes... James Dow Allen <user4353@newsgrouper.org.invalid> - 2026-05-30 12:33 +0000
            Re: Musical notes... ram@zedat.fu-berlin.de (Stefan Ram) - 2026-05-30 12:56 +0000
    Re: Musical notes... Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2026-05-29 22:38 +0100
      Re: Musical notes... David Entwistle <qnivq.ragjvfgyr@ogvagrearg.pbz> - 2026-05-30 06:38 +0000
    Re: Musical notes... Phil Carmody <pc+usenet@asdf.org> - 2026-06-05 16:41 +0300
      Re: Musical notes... James Dow Allen <user4353@newsgrouper.org.invalid> - 2026-06-05 14:54 +0000

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