<s>
The	O
Lax	B-Algorithm
–	I-Algorithm
Wendroff	I-Algorithm
method	I-Algorithm
,	O
named	O
after	O
Peter	O
Lax	O
and	O
Burton	O
Wendroff	O
,	O
is	O
a	O
numerical	B-General_Concept
method	O
for	O
the	O
solution	O
of	O
hyperbolic	O
partial	O
differential	O
equations	O
,	O
based	O
on	O
finite	B-Algorithm
differences	I-Algorithm
.	O
</s>
<s>
What	O
follows	O
is	O
the	O
Richtmyer	O
two-step	O
Lax	B-Algorithm
–	I-Algorithm
Wendroff	I-Algorithm
method	I-Algorithm
.	O
</s>
<s>
The	O
first	O
step	O
in	O
the	O
Richtmyer	O
two-step	O
Lax	B-Algorithm
–	I-Algorithm
Wendroff	I-Algorithm
method	I-Algorithm
calculates	O
values	O
for	O
at	O
half	O
time	O
steps	O
,	O
and	O
half	O
grid	O
points	O
,	O
.	O
</s>
