求下列matlab代码的循环表达

honghu012

i2a1=i2-a1;
) }5 d8 W8 a- {# h, t& pi2b1=i2-b1;
i2c1=i2-c1;
1 v: V2 ~) I* H7 |( Ii2d1=i2-d1;
i2e1=i2-e1;
i2f1=i2-f1;
i2h1=i2-h1;
i2j1=i2-j1;
$ w. r; s2 ^. D, Zi2k1=i2-k1;
( U( T1 O7 e7 P+ g+ f7 Ci2l1=i2-l1;
i2m1=i2-m1;
9 w$ E& J9 q0 I+ y9 c6 ki2n1=i2-n1;
6 c5 M+ K! }/ }' L5 C; r, Q5 vi2o1=i2-o1;
' P! M) \! x+ d. N& F! Ri2p1=i2-p1;
$ G$ `( J; y2 r  p9 Ni2q1=i2-q1;
i2r1=i2-r1;
$ m9 [5 h9 ?$ I' s' a( mi2s1=i2-s1;
3 d9 R. K- T  w; Vw1=sumsqr((i2a1)');
% |2 N; d; Y/ F, z  |6 y* lw2=sumsqr((i2b1)');
% ]4 d# N, ?% _: b- @0 nw3=sumsqr((i2c1)');
+ Z* C$ f- {  k( Y2 A  vw4=sumsqr((i2d1)');
w5=sumsqr((i2e1)');
5 \- X0 z- V0 ]1 X' ^8 Zw6=sumsqr((i2f1)');
; n# [5 V, ^: [w8=sumsqr((i2h1)');
1 o+ i& Z/ s7 J+ ow9=sumsqr((i2j1)');
w10=sumsqr((i2k1)');
) ]6 D& w2 a* V9 E% {# X+ jw11=sumsqr((i2l1)');
w12=sumsqr((i2m1)');
w13=sumsqr((i2n1)');
8 |+ J. F: H" x1 }" e. V- ]9 [5 ~3 [w14=sumsqr((i2o1)');
w15=sumsqr((i2p1)');
+ ^+ q  a; ?: k  a' ]& L# a7 Aw16=sumsqr((i2q1)');
9 w3 u" w  M5 b$ C! {  I, a# s3 uw17=sumsqr((i2r1)');
4 v4 z2 L: c. s, U  y$ X1 dw18=sumsqr((i2s1)');
求大神给力
" ^9 g% x; B( u$ ^* }