<s>
KAlgebra	B-Language
is	O
a	O
mathematical	O
graph	O
calculator	B-Application
included	O
in	O
the	O
KDE	B-Application
education	O
package	O
.	O
</s>
<s>
While	O
it	O
is	O
based	O
on	O
the	O
MathML	B-Language
content	O
markup	O
language	O
,	O
knowledge	O
of	O
MathML	B-Language
is	O
not	O
required	O
for	O
use	O
.	O
</s>
<s>
The	O
calculator	B-Application
includes	O
numerical	O
,	O
logical	O
,	O
symbolic	O
,	O
and	O
analytical	O
functions	O
,	O
and	O
can	O
plot	O
the	O
results	O
onto	O
a	O
2D	O
or	O
3D	O
graph	O
.	O
</s>
<s>
KAlgebra	B-Language
is	O
free	B-Application
and	I-Application
open	I-Application
source	I-Application
software	I-Application
,	O
licensed	O
under	O
the	O
GPL-2.0-or-later	B-License
license	O
.	O
</s>
<s>
KAlgebra	B-Language
has	O
been	O
mentioned	O
by	O
various	O
media	O
sources	O
as	O
free	O
/	O
open	O
source	O
educational	O
programs	O
.	O
</s>
<s>
KAlgebra	B-Language
uses	O
an	O
intuitive	O
algebraic	O
syntax	O
,	O
similar	O
to	O
those	O
used	O
on	O
modern	O
graphing	O
calculators	B-Application
.	O
</s>
<s>
User-entered	O
expressions	O
are	O
converted	O
to	O
MathML	B-Language
in	O
the	O
background	O
,	O
or	O
they	O
can	O
be	O
entered	O
directly	O
.	O
</s>
<s>
The	O
dictionary	O
includes	O
a	O
comprehensive	O
list	O
of	O
all	O
built-in	O
functions	O
in	O
KAlgebra	B-Language
.	O
</s>
<s>
Currently	O
KAlgebra	B-Language
only	O
supports	O
3D	O
graphs	O
explicitly	O
dependent	O
only	O
on	O
the	O
x	O
and	O
y	O
.	O
</s>
