[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

**To**:*math-font-discuss@cogs.susx.ac.uk***Subject**:**Nabla, Laplace-Operator, d'Alembert-Operator****From**:*J%org Knappen <Joerg.Knappen@uni-mainz.de>***Date**: Thu, 19 Aug 1993 23:48 +0200

For the pair Nabla / Laplace there are two possible styles, the first which is found in the germn edition of Landau-Lifschitz is to use $\triangleup$ and $\triangledown$, the other is to use $\nabla$ and $\Delta$. Both styles are often found, both styles provide no problems with present (La)TeX. The d'Alembertian is a little bit difficult, because it sould be a) square, b) sitting on the base line and c) of about the same height as capital letters. It not easy to make all three requirements meet, b) is most often given up. The best LaTeX approximation was $\Box$ from lasy, but it is not optimal. I have also done a d'Alembertian with different weighted strokes as an METAFONT exercise, but this would clearly introduce something new into the world. --J"org Knappen.

- Prev by Date:
**tortoise shell brackets and other types of brackets** - Next by Date:
**Capital subscript are too large** - Prev by thread:
**tortoise shell brackets and other types of brackets** - Next by thread:
**Capital subscript are too large** - Index(es):