Dear Xu Miao, dear Forum,

But I can't use cryst package, for example
When I use SpaceGroupSettingsIT function, it always reply with it
is not defined yet.

Strange. I can't test on a Mac, but this should just work. This
function is implemented in plain GAP language. Do other functions
from Cryst work?

BTW, I can't compile the CARAT package either.
in the autgrp, the types.h redefined the round function, which has
already been defined in math.h, and gcc 3.1 didn't let it go.

Regarding the compilation of CARAT, I have to defer you to the
developers of CARAT at carat@momo.math.rwth-aachen.de. From what
I have heared they have indeed some problems with gcc 3. You might
want to try gcc 2.95 instead. Is this also on the Mac? I don't know
whether this will work - CARAT was designed for Unix.

Bye the way - this and the next week I'll be able to read and answer
my mail only very sporadically.

Best regards,

Franz Gähler
_____________________________________________________________________________
Dr. Franz Gähler             Phone  +49 711 / 685 52 60 
ITAP, Universität Stuttgart  Fax    +49 711 / 685 52 71
Pfaffenwaldring 57           Email  gaehler@itap.physik.uni-stuttgart.de
70550 Stuttgart, Germany     http://www.itap.physik.uni-stuttgart.de/~gaehler

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