<s>
MATHLAB	B-Application
is	O
a	O
computer	B-General_Concept
algebra	I-General_Concept
system	I-General_Concept
created	O
in	O
1964	O
by	O
Carl	O
Engelman	O
at	O
MITRE	O
and	O
written	O
in	O
Lisp	O
.	O
</s>
<s>
"	O
MATHLAB	B-Application
68	I-Application
"	O
was	O
introduced	O
in	O
1967	O
and	O
became	O
rather	O
popular	O
in	O
university	O
environments	O
running	O
on	O
DECs	O
PDP-6	B-Device
and	O
PDP-10	B-Device
under	O
TOPS-10	B-Operating_System
or	O
TENEX	B-Operating_System
.	O
</s>
<s>
Carl	O
Engelman	O
left	O
MITRE	O
for	O
Symbolics	O
where	O
he	O
contributed	O
his	O
expert	O
knowledge	O
in	O
the	O
development	O
of	O
Macsyma	B-Language
.	O
</s>
<s>
MATHLAB	B-Application
is	O
an	O
on-line	O
system	O
providing	O
machine	O
aid	O
for	O
the	O
mechanical	O
symbolic	O
processes	O
encountered	O
in	O
analysis	O
.	O
</s>
<s>
MATHLAB	B-Application
68	I-Application
has	O
been	O
used	O
to	O
solve	O
electrical	O
linear	O
circuits	O
using	O
an	O
acausal	O
modeling	O
approach	O
for	O
symbolic	O
circuit	O
analysis	O
.	O
</s>
<s>
This	O
application	O
was	O
developed	O
as	O
a	O
plug-in	O
for	O
MATHLAB	B-Application
68	I-Application
(	O
open-source	O
)	O
,	O
building	O
on	O
MATHLAB	B-Application
's	O
linear	B-Language
algebra	I-Language
facilities	O
(	O
Laplace	O
transforms	O
,	O
inverse	O
Laplace	O
transforms	O
and	O
linear	B-Language
algebra	I-Language
manipulation	O
)	O
.	O
</s>
