XIAN-FEM-2026June/三维matlab代码/2023-2-端口激励问题(四面体网格)/BF_Et.m

function [out1,out2]=BF_Et(num,u,v)
if num==1
	out1=1-v;
	out2=u;
elseif num==2
	out1=v;
	out2=1-u;
elseif num==3
	out1=-v;
	out2=u;
end