1,147 reputation
311
bio website cs.tut.fi/~jkorpela
location Finland
age 62
visits member for 2 years, 3 months
seen Jul 2 at 13:26

I’m an author and a consultant who specializes in character codes, localization, web authoring, accessibility, and typography. Author of Unicode Explained and Going Global with JavaScript and Globalize.js.


Jun
12
comment A symbol for same order of magnitude in math mode
@egreg, thanks for the correction. I’ve edited my answer. I was confused because I checked this too fast and was mislead by the Unicode name of “≅” (\cong), APPROXIMATELY EQUAL TO, which conflicts with the modern usage of the symbol (but Unicode names have been carved in stone).
Jun
12
comment A symbol for same order of magnitude in math mode
The Wikipedia page is unreliable and does not correspond to standards. According to ISO 80000-2, the symbol created using \sim expresses proportionality, which is an entirely different thing.
Jun
1
comment Why does \leq show up as \le?
Please show a complete (preferably minimal) document that reproduces the issue.
May
26
comment Typeset < > symbol
Define “ugly”. What is wrong with the rendering? Also define “nice”. And are you sure you should be using math mode? It looks like you might be trying to display HTML tags.
May
17
comment Hieroglyphs: How could we map several font files?
Using “glyph positions” F021 etc. seems to mean using Private Use code points and relying on specific fonts containing some hieroglyphs assigned to them. This does not sound particularly modern or robust. Using the current Unicode assignments would be the modern way, but then you need fonts that contain the hieroglyphs as properly coded, as well as tools that make use of them.
May
4
comment Typeset an upright ell
Since \ell denotes the character SCRIPT SMALL L, which is derived from an italic l (as the Unicode Standard says), it is in essence italic. It is illogical to try to make it upright.
Apr
13
comment What is the TeX/LaTeX symbol for subgroup (not normal subgroup)?
The concept “extensions of the standard unicode” does not make much sense, given what Unicode is, and I don’t see anyone having suggested such things. If you are trying to ask whether there is a character that resembles “<” but specifically denotes subgroup relation, then this is not about TeX at all. It would make perfect sense even if (heaven forbid) TeX did not exist. (And the answer is “no”.)
Apr
13
comment What is the TeX/LaTeX symbol for subgroup (not normal subgroup)?
People use different symbols. And “<” is not an “inequality symbol”, it is LESS-THAN SIGN (though it can be used to denote things other than the common arithmetic relation).
Apr
13
comment What is the TeX/LaTeX symbol for subgroup (not normal subgroup)?
The question which symbol should be used is a matter of conventions of mathematical notations, thus quite independent of TeX. When you have decide which symbol you wish to use (so that you can show an image of it and/or identify it as a coded character), you may have a question about displaying it using some techniques, such as TeX.
Apr
13
comment What is the TeX/LaTeX symbol for subgroup (not normal subgroup)?
The question seems to be off-topic, as it is about a proper symbol for subgroup relation rather than displaying a symbol using TeX. According to MathWorld, subgroup relation is expressed using either the less-than character or a subset relation symbol.
Apr
5
comment What are these characters Ö and Þ supposed to be and how do I configure my internet browser to have them load properly?
Ö stands for the square root symbol √ as you thought. I think the problem can be addressed without a URL, too, but it would help if you copied and pasted a relevant small piece of HTML code (where the symbols appear).
Apr
5
comment What are these characters Ö and Þ supposed to be and how do I configure my internet browser to have them load properly?
Try asking in SuperUser, but include then a URL of a problem page. The issue has nothing to do with (La)TeX. It’s really a matter of a page using a font trick to extend character repertoire, using the Symbol font. The Þ symbol is meant to show as a double arrow, “⇒” denoting implication.
Mar
28
comment Putting normal letters in between Greek ones
It’s ISO 80000-2 (and IEC 80000-2) now, available from usual ISO document distributors. And as I wrote, though mathematicians have their own habits, in physics the standard is generally followed, and the formula here is clearly a physics formula.
Mar
28
comment Putting normal letters in between Greek ones
As an aside, π should be written in upright style, using e.g. \piup from txfonts package, instead of \pi. (By standards, symbols of mathematical constants are written in upright style, not italic, and this is generally applied in physics, though very often violated in mathematics.)
Mar
27
comment WriteLatex utf-8 ģ symbol problem
The capital letter produced does not a have a cedilla but a comma. But G with cedilla, Ģ, was not the problem here: it can be written as \unichar{"0122} or inserted as such when utf8 is enabled.
Mar
27
comment WriteLatex utf-8 ģ symbol problem
Doesn’t \'{g} produce g with acute accent? So that would be a wrong character if you want g with cedilla.
Mar
9
comment Who do I have to ask, if I need a \mathsfup{\Theta} (missing unicode character)?
@LaRiFaRi, sorry for missing `, added it now. I didn’t use any extra packages. What happens when you try $\sf{\Theta}$`?
Mar
2
comment switch greek lowercase for times.sty to upright?
Why do you want to mimic incorrect rendering? And it’s not web browsers that are the culprit, it’s incorrectly coded HTML documents. (And whether a character in a regular typeface looks fatty depends on the font, on the rendering engine, and the eye of the beholder.)
Feb
8
comment Multiple diacritics on one character
The problem looks well-defined to me; it is reproducible simply by wrapping documentclass{article}\begin{document} and \end{document} around the code posted. The character does not show well here in SO either, since web browsers are not good at using multiple diacritics.
Jan
9
comment Symbol for logical equivelence
The standard symbol for logical equivalence is “⇔”. Are you sure you are looking for a different symbol (apparently, one that has not even been coded as a character in Unicode)?