On 4/14/2014 11:30 AM, Sanjoy Mahajan wrote:
I can change things but will only do that when all you mathematicians
have some agreement about it ...
Otared points out that the distinction between \triangle and
\bigtriangleup comes from plain TeX. plain.tex has these definitions:
Hans Hagen pra...@wxs.nl writes:
So \triangle is a math ord and \bigtriangleup a math bin.
For compatibility, that should probably stay true in ConTeXt too---even
the low placement of \bigtriangledown, which I don't understand but
which does reproduce plain TeX's placement.
why? if
I can change things but will only do that when all you mathematicians
have some agreement about it ...
Otared points out that the distinction between \triangle and
\bigtriangleup comes from plain TeX. plain.tex has these definitions:
\mathchardef\triangle=0234
\mathchardef\bigtriangleup=2234
On 4/13/2014 4:44 AM, Sanjoy Mahajan wrote:
Otared Kavian ota...@gmail.com writes:
The \triangle operator is used for instance in the « symmetric
difference » of two subsets
Ah, good to learn something about pure mathematics. In my mathematics
degree, my tutor said, You are very good at the
Otared Kavian ota...@gmail.com writes:
The \triangle operator is used for instance in the « symmetric
difference » of two subsets
Ah, good to learn something about pure mathematics. In my mathematics
degree, my tutor said, You are very good at the applied material,
which was not meant as a
Hi,
The \triangle operator is used for instance in the « symmetric difference » of
two subsets: if $E$ is a set and $A \subset E$, and $B \susbet E$, then one
defines
\startformula
A \triangle B := (A \cup B) \setminus (A \cap B).
\stopformula
Then the mapping $(A,B) \mapsto A \triangle B$ is a
I just noticed that the gradient operator (\triangledown) ends up too
low when using Palatino:
\setupbodyfont[palatino]
\starttext
$\triangledown T$
\stoptext
It seems about 3pt too low. Without the \setupbodyfont[palatino], the
placement is fine.
(tested with 2013.05.28 and 2014.03.27 betas)
I think you are using the wrong symbol. Or at least I would prefer \nabla as
gradient operator.
Jannik
Am 10.04.2014 um 23:49 schrieb Sanjoy Mahajan san...@mit.edu:
I just noticed that the gradient operator (\triangledown) ends up too
low when using Palatino:
\setupbodyfont[palatino]
Jannik,
You are right. \nabla looks much nicer and is placed correctly. (I
still think the \triangledown placement is slightly off.)
My environment files from MkII days have \def\nabla{\triangledown}, so I
never tried the true \nabla until your suggestion.
Thank you.
-Sanjoy
Jannik Voges
On Thu, 10 Apr 2014, Sanjoy Mahajan wrote:
Jannik,
You are right. \nabla looks much nicer and is placed correctly. (I
still think the \triangledown placement is slightly off.)
My environment files from MkII days have \def\nabla{\triangledown}, so I
never tried the true \nabla until your
I cannot say whether the wrong placement is due to the wrong font
metrics or the wrong mapping (mathop vs mathord) by ConTeXt.
I tried '\triangle T' (often used as the Laplacian operator, instead of
writing it out as \nabla^2). That one comes out fine, even though
\triangledown does not. But
On Fri, 11 Apr 2014, Sanjoy Mahajan wrote:
I cannot say whether the wrong placement is due to the wrong font
metrics or the wrong mapping (mathop vs mathord) by ConTeXt.
I tried '\triangle T' (often used as the Laplacian operator, instead of
writing it out as \nabla^2). That one comes out
On Fri, 11 Apr 2014, Aditya Mahajan wrote:
On Fri, 11 Apr 2014, Sanjoy Mahajan wrote:
I cannot say whether the wrong placement is due to the wrong font
metrics or the wrong mapping (mathop vs mathord) by ConTeXt.
I tried '\triangle T' (often used as the Laplacian operator, instead of
Instead of \triangle you should use \Delta for the laplacian (as you
should use \nabla for the gradient).
Mikael
On Fri, Apr 11, 2014 at 6:06 AM, Sanjoy Mahajan san...@mit.edu wrote:
I cannot say whether the wrong placement is due to the wrong font
metrics or the wrong mapping (mathop vs
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