<s>
exp4j	B-Language
is	O
a	O
small	O
Java	B-Language
library	O
for	O
evaluation	O
of	O
mathematical	O
expressions	O
.	O
</s>
<s>
It	O
implements	O
Dijkstra	O
's	O
Shunting-yard	B-Application
algorithm	I-Application
to	O
translate	O
expressions	O
from	O
infix	O
notation	O
to	O
Reverse	O
Polish	O
notation	O
and	O
calculates	O
the	O
result	O
using	O
a	O
simple	O
Stack	B-Application
algorithm	O
.	O
</s>
