Discrete Poisson equation: Difference between revisions

m (Reverting possible vandalism by 36.74.191.235 to version by 163.1.19.73. False positive? Report it. Thanks, ClueBot NG. (1306819) (Bot))
-I & ~D & -I & ~0 & ~0 & \ldots & ~0 \\
~0 & -I & ~D & -I & ~0 & \ldots & ~0 \\
\vdots & \ddotsvdots & \ddotsvdots & \ddotsvdots & \ddotsvdots & \ddots & \vdots \\
~0 & \ldots & ~0 & -I & ~D & -I & ~0 \\
~0 & \ldots & \ldots & ~0 & -I & ~D & -I \\