XIAN-FEM-2026June/三维matlab代码/2022-11 PML&&ABC/2022-11 PML/matlab代码及对应COMSOL模型/BF_Et.m

function [out1,out2]=BF_Et(num,u,v)
%矢量基

if num==1 %1-2
	out1=1-v;
	out2=u;
elseif num==2 %1-3
	out1=v;
	out2=1-u;
elseif num==3 %2-3
	out1=-v;
	out2=u;
end