On 2/18/2016 12:40 AM, Pablo Rodriguez wrote:
On 02/17/2016 11:18 PM, Alan BRASLAU wrote:
On Wed, 17 Feb 2016 20:08:31 +0100 Hans Hagen wrote:
you're an american citizen who likes $x^2$ but to call if
beautiful ... €x^2€ nor £x^2£ (in 8 bit encodings / local keyboards
times) all look bad ...
Hans, you forgot: ¥x^2¥, ₽x^2₽, ₱x^2₱, ₹x^2₹, ...
Besides, U+0024 comes from ASCII and all programmers know that it is a
perfectly valid and useful character.
Of course, and even ₧x²₧ or even ₯x²₯...
we need a proper begin/end symbol ..
Too bad Knuth did not choose ¡x^2!
Excuse me, Alan, this is exclamation in Spanish (and only in Spanish).
Just out of curiosity, why do you think he should have chosen that?
because # & % were taken and ^ _ were needed for scripts and [] () | = +
- are also quite mathematical .. .that doesn't leave much
@x^2@ could have worked
also, DEK used a keyboard with some special characters (probably dating
from those assembler like computer languages) which is why the plain tex
format has:
\mathcode`\^^@="2201 % \cdot
\mathcode`\^^A="3223 % \downarrow
\mathcode`\^^B="010B % \alpha
\mathcode`\^^C="010C % \beta
\mathcode`\^^D="225E % \land
\mathcode`\^^E="023A % \lnot
\mathcode`\^^F="3232 % \in
\mathcode`\^^G="0119 % \pi
\mathcode`\^^H="0115 % \lambda
\mathcode`\^^I="010D % \gamma
\mathcode`\^^J="010E % \delta
\mathcode`\^^K="3222 % \uparrow
\mathcode`\^^L="2206 % \pm
\mathcode`\^^M="2208 % \oplus
\mathcode`\^^N="0231 % \infty
\mathcode`\^^O="0140 % \partial
\mathcode`\^^P="321A % \subset
\mathcode`\^^Q="321B % \supset
\mathcode`\^^R="225C % \cap
\mathcode`\^^S="225B % \cup
\mathcode`\^^T="0238 % \forall
\mathcode`\^^U="0239 % \exists
\mathcode`\^^V="220A % \otimes
\mathcode`\^^W="3224 % \leftrightarrow
\mathcode`\^^X="3220 % \leftarrow
\mathcode`\^^Y="3221 % \rightarrow
\mathcode`\^^Z="8000 % \ne
\mathcode`\^^[="2205 % \diamond
\mathcode`\^^\="3214 % \le
\mathcode`\^^]="3215 % \ge
\mathcode`\^^^="3211 % \equiv
\mathcode`\^^_="225F % \lor
i wonder if anyone ever used that
Hans
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