* math: too big space between function and argument
@ 2011-05-24 11:14 Paul Menzel
2011-05-24 13:25 ` Wolfgang Schuster
2011-05-24 13:56 ` math: too big space between function and argument Aditya Mahajan
0 siblings, 2 replies; 7+ messages in thread
From: Paul Menzel @ 2011-05-24 11:14 UTC (permalink / raw)
To: ntg-context
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Dear ConTeXt folks,
to markup the probability measure and the parenthesis around the
argument, I defined the following command.
\define[1]\P{{\mathbf P}\left( #1 \right)}
Unfortunately the space between the P and the left ( is a little big in
my opinion. Is that correct or should/can I fix that somehow?
Thanks,
Paul
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\define[1]\P{{\mathbf P}\left( #1 \right)}
\starttext
The following equation contains probabilities.
\placeformula
\startformula
\P{A ∪ B} = \P{A} + \P{B} - \P{A ∩ B}
\stopformula
\stoptext
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: math: too big space between function and argument 2011-05-24 11:14 math: too big space between function and argument Paul Menzel @ 2011-05-24 13:25 ` Wolfgang Schuster 2011-05-25 13:46 ` Why is `\P` used for not often used ¶? (was: math: too big space between function and argument) Paul Menzel 2011-05-24 13:56 ` math: too big space between function and argument Aditya Mahajan 1 sibling, 1 reply; 7+ messages in thread From: Wolfgang Schuster @ 2011-05-24 13:25 UTC (permalink / raw) To: mailing list for ConTeXt users Am 24.05.2011 um 13:14 schrieb Paul Menzel: > Dear ConTeXt folks, > > > to markup the probability measure and the parenthesis around the > argument, I defined the following command. > > \define[1]\P{{\mathbf P}\left( #1 \right)} > > Unfortunately the space between the P and the left ( is a little big in > my opinion. Is that correct or should/can I fix that somehow? You can insert negative kerning with “\!”. \define[1]\P{{\mathbf P}\!\left(#1\right)} BTW: You redefine the already existing \P (expands to ¶) command. Wolfgang ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
* Why is `\P` used for not often used ¶? (was: math: too big space between function and argument) 2011-05-24 13:25 ` Wolfgang Schuster @ 2011-05-25 13:46 ` Paul Menzel 2011-05-25 14:27 ` Wolfgang Schuster 0 siblings, 1 reply; 7+ messages in thread From: Paul Menzel @ 2011-05-25 13:46 UTC (permalink / raw) To: ntg-context [-- Attachment #1.1: Type: text/plain, Size: 1009 bytes --] On Di, 2011-05-24 at 15:25 +0200, Wolfgang Schuster wrote: > Am 24.05.2011 um 13:14 schrieb Paul Menzel: > > to markup the probability measure and the parenthesis around the > > argument, I defined the following command. > > > > \define[1]\P{{\mathbf P}\left( #1 \right)} > > > > Unfortunately the space between the P and the left ( is a little big in > > my opinion. Is that correct or should/can I fix that somehow? > > You can insert negative kerning with “\!”. > > \define[1]\P{{\mathbf P}\!\left(#1\right)} Thank you for the quick reply. > BTW: You redefine the already existing \P (expands to ¶) command. I should read the log to notice such problems. I guess I will use `\Pr` then. But seriously does somebody really need a lot of ¶ in there texts? (If yes I would be interested when.) If not, why is such a nice command name reserved for such a purpose? I guess this has been there for a long time, so redefining would break too much? Thanks, Paul [-- Attachment #1.2: This is a digitally signed message part --] [-- Type: application/pgp-signature, Size: 198 bytes --] [-- Attachment #2: Type: text/plain, Size: 485 bytes --] ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Why is `\P` used for not often used ¶? (was: math: too big space between function and argument) 2011-05-25 13:46 ` Why is `\P` used for not often used ¶? (was: math: too big space between function and argument) Paul Menzel @ 2011-05-25 14:27 ` Wolfgang Schuster 0 siblings, 0 replies; 7+ messages in thread From: Wolfgang Schuster @ 2011-05-25 14:27 UTC (permalink / raw) To: mailing list for ConTeXt users Am 25.05.2011 um 15:46 schrieb Paul Menzel: >> BTW: You redefine the already existing \P (expands to ¶) command. > > I should read the log to notice such problems. I guess I will use `\Pr` > then. This isn’t better because \Pr is also a predefined command for math. When you want to replace a existing command use \P because you can just type ¶ when you need the character. > But seriously does somebody really need a lot of ¶ in there texts? (If > yes I would be interested when.) If not, why is such a nice command name > reserved for such a purpose? > > I guess this has been there for a long time, so redefining would break > too much? Not really, it’s a command from plain TeX where input was limited to ascii and local encodings and typing ¶ wasn’t as easy as nowadays. Here is a list with commands for characters which are inherited from plain TeX and also a few commands (i list them because they one letter commands) for accents: \starttext \starttabulate[|lh{\type}|l|] \HC {\AA} \EQ \AA \NC\NR \HC {\aa} \EQ \aa \NC\NR \HC {\ae} \EQ \ae \NC\NR \HC {\AE} \EQ \AE \NC\NR \HC {\i} \EQ \i \NC\NR \HC {\j} \EQ \j \NC\NR \HC {\l} \EQ \l \NC\NR \HC {\L} \EQ \L \NC\NR \HC {\o} \EQ \o \NC\NR \HC {\O} \EQ \O \NC\NR \HC {\oe} \EQ \oe \NC\NR \HC {\OE} \EQ \OE \NC\NR \HC {\P} \EQ \P \NC\NR \HC {\S} \EQ \S \NC\NR \HC {\SS} \EQ \SS \NC\NR % was \ss in plain TeX \stoptabulate \starttabulate[|lh{\type}|l|] \HC {\"{o}} \EQ \"{o} \NC\NR \HC {\.{o}} \EQ \.{o} \NC\NR \HC {\^{o}} \EQ \^{o} \NC\NR \HC {\~{o}} \EQ \~{o} \NC\NR \HC {\c{o}} \EQ \c{o} \NC\NR \HC {\d{o}} \EQ \d{o} \NC\NR \HC {\H{o}} \EQ \H{o} \NC\NR \HC {\u{o}} \EQ \u{o} \NC\NR \HC {\v{o}} \EQ \v{o} \NC\NR \stoptabulate \type{\Pr} : $\Pr$ \stoptext Wolfgang ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: math: too big space between function and argument 2011-05-24 11:14 math: too big space between function and argument Paul Menzel 2011-05-24 13:25 ` Wolfgang Schuster @ 2011-05-24 13:56 ` Aditya Mahajan 2011-05-25 13:52 ` Paul Menzel 1 sibling, 1 reply; 7+ messages in thread From: Aditya Mahajan @ 2011-05-24 13:56 UTC (permalink / raw) To: mailing list for ConTeXt users On Tue, 24 May 2011, Paul Menzel wrote: > Dear ConTeXt folks, > > > to markup the probability measure and the parenthesis around the > argument, I defined the following command. > > \define[1]\P{{\mathbf P}\left( #1 \right)} > > Unfortunately the space between the P and the left ( is a little big in > my opinion. Is that correct or should/can I fix that somehow? Getting these spaces is tricky; especially if you consider spaces before and after the definition. Choose your pick: \starttext \startformula A{\mathbf P}\left( ABC \right)B \quad A\mathop{\kern\zeropoint\mathbf P}\left( ABC \right)B \quad A{\mathbf P}\mathopen{}\left( ABC \right)\mathclose{}B \quad A\mathop{\kern\zeropoint\mathbf P}\mathopen{}\left( ABC \right)\mathclose{}B \quad \stopformula \stoptext Some information from the mathsets module (which does not work with MkIV). The entry is the latex bug database is not viewable now. %D The \type{\left} and \type{\right} generate a math atom of type inner, %D while for math sets, we want a math open atom. To see the difference, %D consider %D %D \startbuffer %D \startformula %D 2\left(\frac {3}{4} \right) \qquad \hbox{ vs } \qquad %D 2\biggl( \frac {3}{4} \biggr) %D \stopformula %D %D and %D %D \startformula %D \Pr\left(\frac {3}{4} \right) \qquad \hbox{ vs } \qquad %D \Pr\biggl( \frac {3}{4} \biggr) %D \stopformula %D \stopbuffer %D \typebuffer %D %D which gives (notice the spacing before the parenthesis) %D %D \getbuffer %D %D I will assume that if \type{text} is something, then %D the default behaviour is desirable, if \type{text} is empty, then I add %D \type{\mathopen} and \type{\mathclose}. Using \type{\mathopen} to correct %D the spacing is due to Frank Mittelbach, see %D \hyphenatedurl{http://www.latex-project.org/cgi-bin/ltxbugs2html?pr=latex/3853} %D %D Mathset module ensures that we get the correct spacing in both cases %D \startbuffer %D \definemathset[SET][left=(,right=)] %D \startformula %D 2\SET{\frac{3}{4}} \qquad \hbox{ and } \qquad %D \PR{ \frac{3}{4} } %D \stopformula %D \stopbuffer %D \getbuffer[PR] \getbuffer which was typed as \typebuffer %D %D Also, if its argument is a single character, \type{\mathop} centers it to %D with respect to the math||axis. Compare the outputs of %D %D \startbuffer %D \ruledhbox{$\mathop{y}\nolimits_x\left\{A\,\middle|\,B\right\}$} %D \ruledhbox{$\mathop{\kern\zeropoint y}\nolimits_x\left\{A\,\middle|\,B\right\}$} %D \stopbuffer %D %D \typebuffer %D \getbuffer %D %D I have added a \type{\kern\zeropoint} to prevent that. Aditya ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: math: too big space between function and argument 2011-05-24 13:56 ` math: too big space between function and argument Aditya Mahajan @ 2011-05-25 13:52 ` Paul Menzel 2011-05-25 15:54 ` Aditya Mahajan 0 siblings, 1 reply; 7+ messages in thread From: Paul Menzel @ 2011-05-25 13:52 UTC (permalink / raw) To: ntg-context [-- Attachment #1.1: Type: text/plain, Size: 3246 bytes --] On Di, 2011-05-24 at 09:56 -0400, Aditya Mahajan wrote: > On Tue, 24 May 2011, Paul Menzel wrote: > > to markup the probability measure and the parenthesis around the > > argument, I defined the following command. > > > > \define[1]\P{{\mathbf P}\left( #1 \right)} > > > > Unfortunately the space between the P and the left ( is a little big in > > my opinion. Is that correct or should/can I fix that somehow? > > Getting these spaces is tricky; especially if you consider spaces before > and after the definition. Choose your pick: > > \starttext > \startformula > A{\mathbf P}\left( ABC \right)B \quad > A\mathop{\kern\zeropoint\mathbf P}\left( ABC \right)B \quad > A{\mathbf P}\mathopen{}\left( ABC \right)\mathclose{}B \quad > A\mathop{\kern\zeropoint\mathbf P}\mathopen{}\left( ABC \right)\mathclose{}B \quad > \stopformula > \stoptext That looks tricky and complex. > Some information from the mathsets module (which does not work with MkIV). I hope you or somebody will have time to port that module to MkIV. > The entry is the latex bug database is not viewable now. > > %D The \type{\left} and \type{\right} generate a math atom of type inner, > %D while for math sets, we want a math open atom. To see the difference, > %D consider > %D > %D \startbuffer > %D \startformula > %D 2\left(\frac {3}{4} \right) \qquad \hbox{ vs } \qquad > %D 2\biggl( \frac {3}{4} \biggr) > %D \stopformula > %D > %D and > %D > %D \startformula > %D \Pr\left(\frac {3}{4} \right) \qquad \hbox{ vs } \qquad > %D \Pr\biggl( \frac {3}{4} \biggr) > %D \stopformula > %D \stopbuffer > %D \typebuffer > %D > %D which gives (notice the spacing before the parenthesis) > %D > %D \getbuffer > %D > %D I will assume that if \type{text} is something, then > %D the default behaviour is desirable, if \type{text} is empty, then I add > %D \type{\mathopen} and \type{\mathclose}. Using \type{\mathopen} to correct > %D the spacing is due to Frank Mittelbach, see > %D \hyphenatedurl{http://www.latex-project.org/cgi-bin/ltxbugs2html?pr=latex/3853} > %D > %D Mathset module ensures that we get the correct spacing in both cases > %D \startbuffer > %D \definemathset[SET][left=(,right=)] > %D \startformula > %D 2\SET{\frac{3}{4}} \qquad \hbox{ and } \qquad > %D \PR{ \frac{3}{4} } > %D \stopformula > %D \stopbuffer > %D \getbuffer[PR] \getbuffer which was typed as \typebuffer > %D > %D Also, if its argument is a single character, \type{\mathop} centers it > to > %D with respect to the math||axis. Compare the outputs of > %D > %D \startbuffer > %D \ruledhbox{$\mathop{y}\nolimits_x\left\{A\,\middle|\,B\right\}$} > %D \ruledhbox{$\mathop{\kern\zeropoint y}\nolimits_x\left\{A\,\middle|\,B\right\}$} > %D \stopbuffer > %D > %D \typebuffer > %D \getbuffer > %D > %D I have added a \type{\kern\zeropoint} to prevent that. Could you explain the advantage over `\!` which Wolfgang suggested at least for the space after the definition. In addition, I think AMSTeX defines a command `\DeclareMathOperator` [1] which takes care of these things. Thanks, Paul [1] http://en.wikibooks.org/wiki/LaTeX/Advanced_Mathematics#Custom_operators [-- Attachment #1.2: This is a digitally signed message part --] [-- Type: application/pgp-signature, Size: 198 bytes --] [-- Attachment #2: Type: text/plain, Size: 485 bytes --] ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: math: too big space between function and argument 2011-05-25 13:52 ` Paul Menzel @ 2011-05-25 15:54 ` Aditya Mahajan 0 siblings, 0 replies; 7+ messages in thread From: Aditya Mahajan @ 2011-05-25 15:54 UTC (permalink / raw) To: mailing list for ConTeXt users On Wed, 25 May 2011, Paul Menzel wrote: > On Di, 2011-05-24 at 09:56 -0400, Aditya Mahajan wrote: >> On Tue, 24 May 2011, Paul Menzel wrote: > >>> to markup the probability measure and the parenthesis around the >>> argument, I defined the following command. >>> >>> \define[1]\P{{\mathbf P}\left( #1 \right)} >>> >>> Unfortunately the space between the P and the left ( is a little big in >>> my opinion. Is that correct or should/can I fix that somehow? >> >> Getting these spaces is tricky; especially if you consider spaces before >> and after the definition. Choose your pick: >> >> \starttext >> \startformula >> A{\mathbf P}\left( ABC \right)B \quad >> A\mathop{\kern\zeropoint\mathbf P}\left( ABC \right)B \quad >> A{\mathbf P}\mathopen{}\left( ABC \right)\mathclose{}B \quad >> A\mathop{\kern\zeropoint\mathbf P}\mathopen{}\left( ABC \right)\mathclose{}B \quad >> \stopformula >> \stoptext > > That looks tricky and complex. But can be easily hidden behind a macro. > Could you explain the advantage over `\!` which Wolfgang suggested at > least for the space after the definition. \! only corrects the space between the P and (, not the spacing before P, and the space after ). Moreover, some of the math spacing rules change in \scriptstyle and \scriptscriptstyle; using \mathop, \mathopen, and \mathclose means that those rules are followed. > In addition, I think AMSTeX defines a command `\DeclareMathOperator` [1] > which takes care of these things No. \DeclareMathOperator is just a fancy wrapper around \mathop{\operatorfont ...}. A similar result can be achieved in ConTeXt using \declaremathcommand [...] [op] [\mfunction ...] For defining user macros, I prefer \mathop{\mfunction{...}}. Aditya ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2011-05-25 15:54 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-05-24 11:14 math: too big space between function and argument Paul Menzel 2011-05-24 13:25 ` Wolfgang Schuster 2011-05-25 13:46 ` Why is `\P` used for not often used ¶? (was: math: too big space between function and argument) Paul Menzel 2011-05-25 14:27 ` Wolfgang Schuster 2011-05-24 13:56 ` math: too big space between function and argument Aditya Mahajan 2011-05-25 13:52 ` Paul Menzel 2011-05-25 15:54 ` Aditya Mahajan
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