<s>
GroovyLab	O
,	O
formerly	O
jLab	B-Application
,	O
is	O
a	O
numerical	B-General_Concept
computational	I-General_Concept
environment	O
implemented	O
in	O
Java	B-Language
.	O
</s>
<s>
The	O
main	O
scripting	O
engine	O
of	O
jLab	B-Application
is	O
GroovySci	O
,	O
an	O
extension	O
of	O
Groovy	B-Application
.	O
</s>
<s>
Additionally	O
,	O
the	O
interpreted	O
J-Scripts	O
(	O
similar	O
to	O
MATLAB	B-Language
)	O
and	O
dynamic	O
linking	O
to	O
Java	B-Language
class	O
code	O
are	O
supported	O
.	O
</s>
<s>
by	O
scripting	O
engines	O
implemented	O
in	O
the	O
Java	B-Language
language	I-Language
.	O
</s>
<s>
In	O
the	O
current	O
implementation	O
of	O
jLab	B-Application
there	O
coexist	O
two	O
scripting	O
engines	O
:	O
</s>
<s>
the	O
compiled	O
Groovy	B-Application
scripting	O
engine	O
.	O
</s>
<s>
Groovy	B-Application
)	O
seems	O
to	O
be	O
the	O
preferred	O
choice	O
,	O
since	O
it	O
is	O
much	O
faster	O
,	O
can	O
execute	O
directly	O
Java	B-Language
code	I-Language
using	O
only	O
the	O
familiar	O
Java	B-Language
packaging	O
rules	O
,	O
and	O
is	O
feature-rich	B-Architecture
language	O
,	O
i.e.	O
</s>
<s>
Groovy	B-Application
enhanced	O
with	O
MATLAB	B-Language
style	O
matrix	O
operations	O
and	O
surrounding	O
support	O
environment	O
.	O
</s>
