Discrete Poisson equation: Difference between revisions

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Undid revision 495441442 by Kri (talk) One equation can describe many equations if it is in matrix form
m (→‎Example: plural)
m (Undid revision 495441442 by Kri (talk) One equation can describe many equations if it is in matrix form)
 
As can be seen, the boundary <math> u </math>'s are brought to the right-hand-side
of the equationsequation.<ref>Cheny, Ward and David Kincaid, ''Numerical Mathematics and Computing 2nd Ed.'',
Brooks/Cole Publishing Company, Pacific Grove, 1985, pages 443–448.</ref> The entire system is 9&nbsp;&times;&nbsp;9 while <math> D </math> and <math> I </math> are 3&nbsp;&times;&nbsp;3 and given by: