7,111
edits
m (→Example: plural) 

As can be seen, the boundary <math> u </math>'s are brought to the righthandside
of the
Brooks/Cole Publishing Company, Pacific Grove, 1985, pages 443–448.</ref> The entire system is 9 × 9 while <math> D </math> and <math> I </math> are 3 × 3 and given by:
