julia

b692d9f4 - Make opnorm( 1x0 matrix ) zero (#40483)

Make opnorm( 1x0 matrix ) zero (#40483) * Make opnorm( 1x0 matrix ) zero Fixes #40370. * more opnorm tests * remove convert on svdvals Co-authored-by: Daniel Karrasch <Daniel.Karrasch@gmx.de>