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chenyg07

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clc
clear


sigma=5;
a=1;
D=1/(sqrt(2*pi)*sigma);

L=2*pi;
T=100;
dett=0.1;
N=100;
detx=L/N;
miu=30;

for i=1:N+3
    u(i)=100*D*exp(-(i-miu)*(i-miu)/(2*sigma*sigma));   
    end
for t=1:7
   for j=2:1:N+2
       i=j;
   m(j)=u(i)-a*dett/(2*detx)*(u(i+1)-u(i-1))+...
   a*a*dett*dett/(2*detx*detx)*(u(i+1)-2*u(i)+u(i-1));
if  (m(j)<0.001)
          m(j)=0.0;
    end   
   end
   
   m(1)=m(N+1);
   m(N)=m(2);
%      

     for i=2:N+2
         u(i)=m(i);
     end
   t
     plot(m)  
     pause(0.2)
end

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chenyg07

½ð³æ (³õÈëÎÄ̳)

¸Ð¾õ±ß½çÌõ¼þ²»¶Ô Ò»¶Îʱ¼ä¾Í³öÏÖ¾â³ÝÁË  »¹Çë¸÷λ´óÉñÏà¾È
ºÜ¸ßÐËÈÏʶÄã
2Â¥2011-11-02 19:42:04
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

chenyg07

½ð³æ (³õÈëÎÄ̳)

¡ï
xiegangmai(½ð±Ò+1): ¹ÄÀøÌÖÂÛ½»Á÷£¡ 2011-11-02 20:43:24
лл£¬±ðÈ˰ïÎÒ½â¾öÁË£¬°Ñ
m(1)=m(N+1);
   m(N)=m(2);
%      

     for i=2:N+2
         u(i)=m(i);
     end
»»³É
m(1)=m(N+1);
   m(N+2)=m(2);
%      

     for i=2:N+2
         u(i)=m(i);
     end
  m(1)=u(1);
ºÜ¸ßÐËÈÏʶÄã
3Â¥2011-11-02 20:19:14
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ chenyg07 µÄÖ÷Ìâ¸üÐÂ
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