Extended Trapezoidal Rule

The pattern of the coefficients is {1,2,2,2,...,2,2,1}:

$image\img00204.png$

where:

$image\img00201.png$ is the grid column spacing

$image\img00202.png$ is the grid row spacing

$image\img00203.png$ is the grid node value in row i and column j.

See Also