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4Â¥2015-12-30 00:13:43
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2Â¥: Originally posted by Ã×Ã×Ã×BO at 2015-12-29 19:55:20
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function [ u x y k]=wudianchafenfa1(h,m,n,kmax,ep)
% g-sµü´ú·¨½âÎåµã²î·Ö·¨ÎÊÌâ
%kmaxΪ×î´óµü´ú´ÎÊý
%m,nΪx,y·½ÏòµÄÍø¸ñÊý£¬ÀýÈ磨2-0£©/0.01=200;aa
syms temp;
u=zeros(n+1,m+1);
x=-1+(0:m)*h;
y=-1+(0:n)*h;
for(i=1:n+1)
    u(i,1)=sin(3*pi/4+pi*y(i)/4);
    u(i,m+1)=sin(3*pi/4+pi*y(i)/4);
end
for(i=1:n)
    for(j=1:m)
        f(i,j)=32*u(i,j);
    end
end
t=zeros(n-1,m-1);
for(k=1:kmax)
    for(i=2:n)
        for(j=2:m)
            temp=h*h*f(i,j)/4+(u(i,j+1)+u(i,j-1)+u(i+1,j)+u(i-1,j))/4;
            t(i,j)=(temp-u(i,j))*(temp-u(i,j));
            u(i,j)=temp;
        end
    end
    t(i,j)=sqrt(t(i,j));
    if(k>kmax)
        break;
    end
    if(max(max(t))<ep)
        break;      
    end
end
3Â¥2015-12-29 21:42:43
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ÒýÓûØÌû:
4Â¥: Originally posted by Ã×Ã×Ã×BO at 2015-12-30 00:13:43
ÕâÊÇmatlabдµÄ°¡£¬¿ÉÒÔÌ×ÔÚÄãµÄÎÊÌâÉÏ£¬µ«¸ÄÆðÀ´Âé·³£¬ÎÒÃ÷ÌìÖØÐ°ïÄãдһ¸ö°É

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5Â¥2015-12-30 07:36:59
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