Suppose f'"(x) = N,(h) + a,h + azh³ + azh5 + …. The value of N,(h) using Richardson's extrapolation is: N2 (h)=2N1 (h/2)-N1 (h) with error of order O(h^3) N2 (h)=2N1 (h/2)-N1 (h) with error of order...

Extracted text: Suppose f'"(x) = N,(h) + a,h + azh³ + azh5 + …. The value of N,(h) using Richardson's extrapolation is: N2 (h)=2N1 (h/2)-N1 (h) with error of order O(h^3) N2 (h)=2N1 (h/2)-N1 (h) with error of order 0O(h^2) N2 (h)=(4N1(h/2)-N1 (h))/3 with error of order O(h^2 ) N2 (h)=(4N1(h/2)-N1 (h))/3 with error of order O(h^4 )