number of column of octave terminal

[Francesco Potorti`]

How can one make octave change its idea of terminal width?  I use
octave as an emacs subprocess on a character terminal.  The number of
columns I use is 100 but, when displaying matrices, octave behaves as
if only 80 columns were available.  Is there a way to tell octave to
use all the 100 columns?

Thanks