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weixiaogirl

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11jxli1

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2Â¥2012-12-24 10:24:46
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weixiaogirl

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by 11jxli1 at 2012-12-24 10:24:46
Äã°Ñ×ÊÁϽØÍ¼ÉÏ´«´ó¼Ò·½±ãä¯ÀÀ
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3Â¥2012-12-24 11:12:16
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weixiaogirl

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by 11jxli1 at 2012-12-24 10:24:46
Äã°Ñ×ÊÁϽØÍ¼ÉÏ´«´ó¼Ò·½±ãä¯ÀÀ
ÒÔΪÈÈ´«µ¼ÎÊÌâMATÀ®°ÈÓÐÏֳɳÌÐò
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4Â¥2012-12-24 11:20:08
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elever1989

Í­³æ (СÓÐÃûÆø)

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jjdg: ±à¼­ÄÚÈÝ 2012-12-31 05:14
jjdg: ±à¼­ÄÚÈÝ 2012-12-31 05:15
jjdg: ½ð±Ò+2, ÐÁ¿àÁË 2012-12-31 05:16:04
weixiaogirl: ½ð±Ò+5, ¡ïÓаïÖú, лл¥Ö÷µÄÖ¸µ¼°ïÖú 2013-01-08 09:11:23
CODE:
h=L/N;%¿Õ¼ä²½³¤
z=0:h:L;%¿Õ¼äµã×ø±êÊý×é
z=z';%¾ØÕóתÖÃ
tao=lambda*h^2/alfa;%ʱ¼ä²½³¤
tm=M*tao;%ÈÈ´«µ¼µÄ×Üʱ¼ätm
t=0:tao:tm;%ʱ¼äµã×ø±êÊý×é
t=t';%¾ØÕóתÖÃ
%¼ÆËã³õÖµºÍ±ßÖµ
T=zeros(N+1,M+1);%¸³Î¶ȾØÕó³õÖµ
Ti=init_fun(z);%¸÷¿Õ¼äµã´¦µÄ³õʼÌõ¼þ
To=border_funo(t);%Äڱ߽çÌõ¼þ
Te=border_fune(t);%Íâ±ß½çÌõ¼þ
T(:,1)=Ti;
T(1,:)=To;
T(N+1,:)=Te;% ¸³ÓèζȾØÕó±ß½çÌõ¼þÖµÓë³õʼÌõ¼þÖµ
%Óòî·Ö·¨Çó³öζÈTÓë¸Ë³¤L¡¢Ê±¼ätµÄ¹ØÏµ
for k=1:M
    m=2;
    while m<=N
    T(m,k+1)=lambda*(T(m+1,k)+T(m-1,k))+(-2*lambda+1)*T(m,k);
    m=m+1;
    end;
end;
%ÉèÖÃÁ¢ÌåÍø¸ñ
for i=1:M+1
    X(:,i)=z;
end;
for j=1:N+1
    Y(j,:)=t;
end
mesh(X,Y,T);
view([1 -1 1]);
xlabel('Z');
ylabel('t');
zlabel('T');

function y=init_fun(z)%³õÖµÌõ¼þ
y=1-z.^2;
return

function y=border_funo(t)%z=0µÄ±ß½çÌõ¼þ
y=1+t.*0;
return

function y=border_fune(t)%z=LµÄ±ß½çÌõ¼þ
y=t*.0;
return

%

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[ Last edited by jjdg on 2012-12-31 at 05:15 ]
That'smystyle
5Â¥2012-12-31 00:21:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

elever1989

Í­³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
5Â¥: Originally posted by elever1989 at 2012-12-31 00:21:19
h=L/N;%¿Õ¼ä²½³¤
z=0:h:L;%¿Õ¼äµã×ø±êÊý×é
z=z';%¾ØÕóתÖÃ
tao=lambda*h^2/alfa;%ʱ¼ä²½³¤
tm=M*tao;%ÈÈ´«µ¼µÄ×Üʱ¼ätm
t=0:tao:tm;%ʱ¼äµã×ø±êÊý×é
t=t';%¾ØÕóתÖÃ
%¼ÆËã³õÖµºÍ±ßÖµ
T=zeros(N+1,M+1);%¸³Î ...

ÓÐЩµØ·½×Ô¶¯±ä³É±íÇéÁË µ«ÊÇÓ¦¸Ã¿ÉÒÔ¸´ÖÆ
That'smystyle
6Â¥2012-12-31 00:23:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÇúË®Á÷õü22

Ìú³æ (СÓÐÃûÆø)

7Â¥2013-02-03 20:06:27
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

caoyuwu2046

½ð³æ (СÓÐÃûÆø)

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