<s>
In	O
mathematics	O
,	O
infinite	B-Algorithm
difference	I-Algorithm
methods	I-Algorithm
are	O
numerical	B-General_Concept
methods	I-General_Concept
for	O
solving	O
differential	O
equations	O
by	O
approximating	O
them	O
with	O
difference	O
equations	O
,	O
in	O
which	O
infinite	O
differences	O
approximate	O
the	O
derivatives	B-Algorithm
.	O
</s>
