The Boundary value Conditions means check the TA Figure 7.19 by number 1 is the Axial.The number 2 is the Electric potential Symmetry, the number 3 is Zero charge.No. 4 is the Ground.
The Determination of the Boundary Conditions Figure 7.19 The first number is the Axial Symmetry No. 2 is No. 3 Electric potential is Zero charge number four is the Ground.
Takahashi is configured Boundary Conditions as figure 7.19 by number 1 is Axial Symmetry number 2 is Electric potential 3 is a number Zero charge number 4 is Ground.