GiNaC/ginac add.cpp basic.cpp basic.h constant.cpp constant.h ex.h expairseq.cpp flags.h inifcns_gamma.cpp inifcns_zeta.cpp lortensor.cpp numeric.h pseries.cpp symbol.h

[Richard Kreckel]

Update of /home/cvs/GiNaC/ginac

Modified Files:
	add.cpp basic.cpp basic.h constant.cpp constant.h ex.h 
	expairseq.cpp flags.h inifcns_gamma.cpp inifcns_zeta.cpp 
	lortensor.cpp numeric.h pseries.cpp symbol.h 
Log Message:
pseries::expand(): do not generate zero terms.
pseries::print(): print trivial case, too.
others: documentation updates.