raan@TAURUS.BITNET (03/06/91)
Is there a way to define new delimiters in LaTeX math mode,
other than the existing () {} <> | etc.?
What I am after is a the semantics meaning delimiters, which
look something like this:
======= =======
| | | |
| | | |
| | | |
| | | |
| | Expression | |
| | | |
| | | |
| | | |
| | | |
| | | |
======= =======
Of course, I want it to change size in accordance with the size
of the expression, as \{ Expression \} would.
Thanks
-- Ranogawa@orion.arc.nasa.gov (Arthur Ogawa) (03/06/91)
In article <2402@taurus.BITNET> raan%math.tau.ac.il@CUNYVM.CUNY.EDU (Ran Ever-Hadani) writes: |Is there a way to define new delimiters in LaTeX math mode, |other than the existing () {} <> | etc.? | |What I am after is a the semantics meaning delimiters, which |look something like this: | | ======= ======= | | | | | | | | | | | | | | | | | | | | | | | Expression | | | | | | | | | | | | | | | | | | | | | | | | | | | | ======= ======= | |Of course, I want it to change size in accordance with the size |of the expression, as \{ Expression \} would. Here's my best shot: \documentstyle{book} \def\Lmeaning{\left[\![}% \def\Rmeaning{\right]\!]}% \begin{document} \[ \Lmeaning Expression \Rmeaning \] \end{document} You must use these delimiters in pairs because of the \left and \right.
fj@iesd.auc.dk (Frank Jensen) (03/07/91)
In article <1991Mar6.021200.28755@news.arc.nasa.gov> ogawa@orion.arc.nasa.gov (Arthur Ogawa) writes: In article <2402@taurus.BITNET> raan%math.tau.ac.il@CUNYVM.CUNY.EDU (Ran Ever-Hadani) writes: |Is there a way to define new delimiters in LaTeX math mode, |other than the existing () {} <> | etc.? | |What I am after is a the semantics meaning delimiters, which |look something like this: | | ======= ======= | | | | | | | | | | | | | | | | | | | | | | | Expression | | | | | | | | | | | | | | | | | | | | | | | | | | | | ======= ======= | |Of course, I want it to change size in accordance with the size |of the expression, as \{ Expression \} would. Here's my best shot: \documentstyle{book} \def\Lmeaning{\left[\![}% \def\Rmeaning{\right]\!]}% I'm quite sure this will look funny. You probably meant \def\Lmeaning{\left[\!\left[}% \def\Rmeaning{\right]\!\right]}% Still, I suspect that the negative skip is only adequate i some cases. \begin{document} \[ \Lmeaning Expression \Rmeaning \] \end{document} You must use these delimiters in pairs because of the \left and \right. -- Frank Jensen Department of Mathematics and Computer Science Aalborg University DENMARK
jeffrey@cs.chalmers.se (Alan Jeffrey) (03/07/91)
In article <2402@taurus.BITNET> raan%math.tau.ac.il@CUNYVM.CUNY.EDU (Ran Ever-Hadani) writes: >Is there a way to define new delimiters in LaTeX math mode, >other than the existing () {} <> | etc.? If you want `growing' delimiters, then the answer is no, not really. Growing delimiters keep the information about how to stick the large versions together in the font, so you have to stick a new font together if you want a new growing delimiter. However, in your particular case (wanting [[x]]) I can help you, as I have a delimiter font (cspex10) which contains [[, ]], \bigsqcap, and a few other bits and bobs. Metafont code is available. I also have a blackboard bold font, which contains normal-size versions of [[ and ]], along with lots of other `useful' features as bbold greek, bbold punctuation, and lots of other things you'll never need. Cheers, Alan. Alan Jeffrey Tel: +46 31 72 10 98 jeffrey@cs.chalmers.se Department of Computer Sciences, Chalmers University, Gothenburg, Sweden
ogawa@orion.arc.nasa.gov (Arthur Ogawa) (03/08/91)
In article <FJ.91Mar7142304@indigo.iesd.auc.dk> fj@iesd.auc.dk (Frank Jensen) writes: |In article <1991Mar6.021200.28755@news.arc.nasa.gov> ogawa@orion.arc.nasa.gov (Arthur Ogawa) writes: | | In article <2402@taurus.BITNET> raan%math.tau.ac.il@CUNYVM.CUNY.EDU (Ran Ever-Hadani) writes: | |Is there a way to define new delimiters in LaTeX math mode, | |other than the existing () {} <> | etc.? | | | |What I am after is a the semantics meaning delimiters, which | |look something like this: | | | | ======= ======= | | | | | | | | | | | | | | | | | | | | | | | | | | | | Expression | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ======= ======= | | | |Of course, I want it to change size in accordance with the size | |of the expression, as \{ Expression \} would. | | Here's my best shot: | | \documentstyle{book} | | \def\Lmeaning{\left[\![}% | \def\Rmeaning{\right]\!]}% | |I'm quite sure this will look funny. You probably meant I'm not sure what you mean by "look funny"; humor was certainly not the intention ;-). |\def\Lmeaning{\left[\!\left[}% |\def\Rmeaning{\right]\!\right]}% There is no need to double up the \left and \right, as you have done here. If I am wrong in this, I am open to correction. |Still, I suspect that the negative skip is only adequate in some cases. I am eager to find the cases where the single \! is inadequate. It certainly is so for the simple test case; I mean certain in the sense of producing correct print output. Anyone who actually uses my solution, please post results/corrections to me; I will summarize to the net.