[Octave-cvsupdate] CVS update notice (octave-forge/extra/NaN)

[Alois S. <sch...@us...>]

Update of /cvsroot/octave/octave-forge/extra/NaN
In directory usw-pr-cvs1:/tmp/cvs-serv5564

Modified Files:
	sem.m 
Log Message:
more efficient calculations using SSQ from sumskipnan; 2nd output argument gives MEAN; docu improved