function?indicator?=?checkstop（oldnewdt）
%?indicate?whether?we?should?performance?further?iteraions?or?stop

%?Copyright?（c）?2009?
%?Yue?Wu?@?ECE?Department?Tufts?University
%?All?Rights?Reserved??

layer?=?size（new3）;

for?i?=?1:layer
????old_{i}?=?old（::i）;
????new_{i}?=?new（::i）;
end

if?layer
????ind?=?find（abs（new）<=.5）;
????M?=?length（ind）;
????Q?=?sum（abs（new（ind）-old（ind）））./M;
????if?Q<=dt*.18^2
????????indicator?=?1;
????else
????????indicator?=?0;
????end
else
????ind1?=?find（abs（old_{1}）<1）;
????ind2?=?find（abs（old_{2}）<1）;
????M1?=?length（ind1）;
????M2?=?length（ind2）;
????Q1?=?sum（abs（new_{1}（ind1）-old_{1}（ind1）））./M1;
????Q2?=?sum（abs（new_{2}（ind2）-old_{2}（ind2）））./M2;
????if?Q1<=dt*.18^2?&&?Q2<=dt*.18^2
????????indicator?=?1;
????else
????????indicator?=?0;
????end
end
return

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????16663??2009-03-26?19:20??4colors.JPG
?????文件???????24291??2009-03-26?19:20??anti-mass.jpg
?????文件????????2879??2009-03-26?19:20??brain.jpg
?????文件?????????848??2009-03-26?19:20??checkstop.m
?????文件???????14373??2009-03-26?19:41??chenvese.m
?????文件????????1897??2009-03-26?19:42??demo?chenvese.m
?????文件??????136210??2009-03-26?19:20??flowers.jpg
?????文件?????????389??2009-03-26?19:20??Heaviside.m
?????文件??????809765??2009-03-26?19:20??HELP.pdf
?????文件?????????767??2009-03-26?19:20??kappa.m
?????文件????????2101??2009-03-26?19:20??maskcircle2.m
?????文件????????4052??2009-03-26?19:01??READ?ME.txt
?????文件?????????855??2009-03-26?19:20??reinitialization.m
?????文件?????????706??2009-03-26?19:20??showphi.m