<s>
APFEL	B-Application
is	O
an	O
opensource	B-License
software	O
able	O
to	O
perform	O
Dokshitzer	O
–	O
Gribov	O
–	O
Lipatov	O
–	O
Altarelli	O
–	O
Parisi	O
(	O
DGLAP	O
)	O
evolution	O
up	O
to	O
next	O
to	O
next	O
to	O
leading	O
order	O
(	O
NNLO	O
)	O
in	O
quantum	O
chromodynamics	O
(	O
QCD	O
)	O
and	O
to	O
leading	O
order	O
(	O
LO	O
)	O
in	O
quantum	O
electrodynamics	O
(	O
QED	O
)	O
,	O
both	O
with	O
pole	O
and	O
minimal	O
subtraction	O
scheme	O
(	O
MSbar	O
)	O
masses	O
.	O
</s>
<s>
The	O
coupled	O
DGLAP	O
QCD+QED	O
evolution	O
equations	O
are	O
solved	O
in	O
x-space	O
by	O
means	O
of	O
higher	O
order	O
interpolations	O
and	O
Runge-Kutta	B-Algorithm
techniques	O
,	O
and	O
allow	O
the	O
exploration	O
of	O
different	O
options	O
for	O
the	O
treatment	O
of	O
subleading	O
terms	O
.	O
</s>
