| 2010-10-04 10:22:57 |
adoa |
bug |
|
|
added bug |
| 2010-10-04 10:22:59 |
adoa |
attachment added |
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autoScreenshot.png https://bugs.launchpad.net/bugs/654484/+attachment/1671069/+files/autoScreenshot.png |
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| 2010-10-04 10:25:04 |
adoa |
attachment added |
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chi_nu.png https://bugs.launchpad.net/ubuntu-font-family/+bug/654484/+attachment/1671071/+files/chi_nu.png |
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| 2010-10-04 19:12:12 |
Paul Sladen |
attachment added |
|
greek-nu-alternate.pdf https://bugs.launchpad.net/ubuntu-font-family/+bug/654484/+attachment/1671952/+files/greek-nu-alternate.pdf |
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| 2011-09-28 13:00:33 |
Paul Sladen |
tags |
|
uff-greek uff-style |
|
| 2014-11-18 14:54:58 |
Matthew Paul Thomas |
summary |
Style: v ν x χ Greek and Latin characters use the same glyph in italic style |
[2 mod] Style: v ν x χ Greek and Latin characters use the same glyph in italic style |
|
| 2014-11-18 14:55:02 |
Matthew Paul Thomas |
ubuntu-font-family: status |
New |
Triaged |
|
| 2014-11-18 14:55:05 |
Matthew Paul Thomas |
ubuntu-font-family: importance |
Undecided |
Medium |
|
| 2014-11-18 14:55:48 |
Matthew Paul Thomas |
description |
Rendered in 21pt Italic
Sample Glyphs:
ν=v x=χ
Description:
Some lowercase Greek and Latin characters use the same glyph in italic style.
This is quite unfortunate for formula typesetting. Especially in physics.
Many sans-serif fonts have this problem. It is the reason most people use serif fonts for formula typesetting, including myself. Since in almost every font, many of the Greek uppercase letters share glyphs with Latin uppercase letters, these Greek uppercase letters are not distinguished from the equivalent Latin uppercase letters in formula typesetting: ABEHKMNOTXZ ...
Thus the ambiguity is usually given by using lowercase Greek and Latin letters. As far as I know, in formula typesetting the lowercase letters are usually used in italic style. So it would be great if at least the italic versions are distinguishable. The only exception I know about, is the Greek υ (U+03C5) which is often hard to distinguish from Latin u (U+0075), so in formula typesetting usually only the latter is used.
In the current ubuntu-font the following characters share the same glyph:
• the Greek ν (nu) and Latin v, which is awful for semi classical calculations for example
• the Greek χ (chi) and Latin x, which is a problem if an indicator function is named χ and the variable is x
In most sans-serif fonts these two cases are unambiguous in italic style. So these occur more often than one would think.
UA String:
Mozilla/5.0 (X11; U; Linux x86_64; de; rv:1.9.2.10) Gecko/20100915 Ubuntu/10.04 (lucid) Firefox/3.6.10 |
Rendered in 21pt Italic
Sample Glyphs:
ν=v x=χ
Description:
Some lowercase Greek and Latin characters use the same glyph in italic style.
This is quite unfortunate for formula typesetting. Especially in physics.
Many sans-serif fonts have this problem. It is the reason most people use serif fonts for formula typesetting, including myself. Since in almost every font, many of the Greek uppercase letters share glyphs with Latin uppercase letters, these Greek uppercase letters are not distinguished from the equivalent Latin uppercase letters in formula typesetting: ABEHKMNOTXZ ...
Thus the ambiguity is usually given by using lowercase Greek and Latin letters. As far as I know, in formula typesetting the lowercase letters are usually used in italic style. So it would be great if at least the italic versions are distinguishable. The only exception I know about, is the Greek υ (U+03C5) which is often hard to distinguish from Latin u (U+0075), so in formula typesetting usually only the latter is used.
In the current ubuntu-font the following characters share the same glyph:
• the Greek ν (nu) and Latin v, which is awful for semi classical calculations for example
• the Greek χ (chi) and Latin x, which is a problem if an indicator function is named χ and the variable is x (see also bug 647092)
In most sans-serif fonts these two cases are unambiguous in italic style. So these occur more often than one would think.
UA String:
Mozilla/5.0 (X11; U; Linux x86_64; de; rv:1.9.2.10) Gecko/20100915 Ubuntu/10.04 (lucid) Firefox/3.6.10 |
|
| 2014-11-18 14:56:15 |
Matthew Paul Thomas |
attachment removed |
autoScreenshot.png https://bugs.launchpad.net/ubuntu-font-family/+bug/654484/+attachment/1671069/+files/autoScreenshot.png |
|
|
| 2015-03-05 17:43:04 |
Matthew Paul Thomas |
tags |
uff-greek uff-style |
uff-dm-review uff-greek uff-style |
|
| 2015-08-18 16:45:24 |
Magdalena Mirowicz |
ubuntu-font-family: milestone |
|
0.92-beta-test |
|
| 2015-08-19 12:19:05 |
Magdalena Mirowicz |
ubuntu-font-family: status |
Triaged |
In Progress |
|
| 2015-08-26 21:08:16 |
Rasmus Underbjerg Pinnerup |
bug |
|
|
added subscriber Rasmus Underbjerg Pinnerup |
| 2015-12-08 16:00:59 |
Matthew Paul Thomas |
attachment added |
|
before-and-after screenshots https://bugs.launchpad.net/ubuntu-font-family/+bug/654484/+attachment/4531518/+files/654484-Greek-characters.png |
|
| 2016-01-04 10:41:38 |
Magdalena Mirowicz |
ubuntu-font-family: status |
In Progress |
Fix Committed |
|
| 2020-09-28 03:23:36 |
Adolfo Jayme Barrientos |
bug task added |
|
fonts-ubuntu (Ubuntu) |
|
| 2020-09-28 03:23:43 |
Adolfo Jayme Barrientos |
fonts-ubuntu (Ubuntu): status |
New |
Triaged |
|
