===== Original Message From Eckhart Guthöhrlein

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should do everything you need: since u're not mixing text in \digits do you really need a global math font reencoding?

In principle yes. For example, $f(x)=3x+7$ should come out with oldstyle figures, if these are used by default, shouldn't it?

No, I don't think so (see below)

Btw, striving for good typography, in which cases should oldstyle figures *not* be used?

I am no typography expert, but I think that old style figures are, generally speaking, inappropriate for math mode. The various heights, etc. make more work for the brain in complicated mathematics expressions. I can't recall ever seeing good mathematics/physics done in old style figures. OS numerals are actually _text_ figures, as Bringhurst points out. In my own academic journal there is little to no math, but when someone mentions, e.g., the version of a computer program, I put the version number in upright figures, thought the rest of the journal is in os figures. That's my two cents, for what it's worth:-) Best Idris ============================ Professor Idris Samawi Hamid Department of Philosophy Colorado State University Fort Collins, CO 80523