scientific_apks:
These are scientific 
and/or development apk's,
that is, runnable files
for Android, which can
by students of Intraplates.
They are used 
ON YOUR OWN RESPONSIBILITY.
Here are also additional
scripts and programs for
other machines that can
work neatly together with
the apk's. All this is
original work, by 
S.R.Weber alias
Aristo Tacoma, and with
copyrights as stated--
in general, it is freeware,
though vast parts of G15 PMN
is open source.