function?theta=compute_angle（XXsumn）
???for?i=1:n+1
??????deltaX（i）=Xsum（i1）-X（1）;
??????XX（i）=abs（deltaX（i））;
??????deltaY（i）=Xsum（i2）-X（2）;
??????r（i）=sqrt（deltaX（i）^2+deltaY（i）^2）;
??????if?（deltaX（i）>0）
?????theta（i）=sign（deltaY（i））*acos（deltaX（i）/r（i））;
??????else?
???????????theta（i）=sign（deltaY（i））*（acos（deltaX（i）/r（i））+pi）;
??????end

???end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????2075??2017-05-28?21:18??ff.m

?????文件???????6091??2017-11-01?13:11??fff40.m

?????文件???????1125??2017-05-29?16:29??Improve_repulsion.m

?????文件??????17385??2017-09-27?22:56??junbu.m

?????文件??????14730??2017-10-18?22:32??juxing.m

?????文件???????8632??2017-12-18?22:21??yicitongguo.m

?????文件???????1555??2017-12-18?21:56??yundong.m

?????文件??????17923??2017-10-31?20:29??zhixian.asv

?????文件??????17923??2017-10-31?20:30??zhixian.m

?????文件????????369??2017-12-18?21:54??compute_angle.m

?????文件????????170??2017-05-14?23:31??compute_angle_wuzhangai.m

?????文件????????150??2017-05-21?02:08??compute_Attract.m

?????文件????????176??2017-05-21?14:55??compute_mul_angle.m

?????文件????????386??2017-05-21?16:59??compute_mutual.m

-----------?---------??----------?-----??----

????????????????88690????????????????????14