ABSTRACT
I = R1,1 + C(h 2) +D(h4) + · · · (10.23)
I = R + C( h2
) +D(
) + · · · . (10.24)
Combining (10.23) and (10.24), we get another estimate for I that we will denote by R2,2
R2,2 = 4R2,1 −R1,1
3 .
This extrapolation eliminates the error term C(h2). Similarly, if the extrapolation is carried out for R2,2 and R3,2, we get a new
estimate for I that we will denote by R3,3
R3,3 = 16R3,2 −R2,2
15 .
