... region and (-1 , 0) for sub region If a uniform subdivision is assumed the Jacobian J for the transformation from to is for all regions J K (6 .43 ) 148 The Boundary Element Method with Programming The ... 11 11 11 11 j 21 41 43 22 42 23 k 31 32 33 37 34 35 36 l 21 41 23 43 22 42 180 The Boundary Element Method with Programming We note that for mirror image number n= 1,3 ,4 and 6, the incidences have ... 182 The Boundary Element Method with Programming CASE(3) TD=(/1.0 ,-1 .0,1.0/) CASE (4) TD=(/1.0,1.0 ,-1 .0/) CASE(5) TD=( /-1 .0,1.0 ,-1 .0/) CASE(6) TD=(/1.0 ,-1 .0 ,-1 .0/) CASE(7) TD=( /-1 .0 ,-1 .0 ,-1 .0/)...