Some issues of MoM implement

[studyMember]

Dear scholar, I encountered some problems when I used your library to write the method of moments program. When I used the common edge to go through the basis function for z calculation, I used your program to calculate GA and GPhi for each point. According to the formula in the literature, the process of calculating the z matrix should be as follows
，After I used this formula to calculate the result was wrong, I tried to use it later

and

. After the calculation, the subsequent formula of the field is

, but the results are not quite right, please guide me to the following is the problem with my method of use.