<s>
A	O
Lie	B-Algorithm
group	I-Algorithm
integrator	I-Algorithm
is	O
a	O
numerical	B-Algorithm
integration	I-Algorithm
method	B-Algorithm
for	O
differential	O
equations	O
built	O
from	O
coordinate-independent	O
operations	O
such	O
as	O
Lie	B-Algorithm
group	I-Algorithm
actions	I-Algorithm
on	O
a	O
manifold	B-Architecture
.	O
</s>
