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Mr123456

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Mr123456

Ìú³æ (³õÈëÎÄ̳)

ÒýÓûØÌû:
Â¥: Originally posted by dbb627 at 2012-03-01 19:58:18:
ÔËÐÐÈçͼËùʾ
75/2a/149791_1330603095_490.gif

p1,p2,p3,p4 Ç°ÃæµÄ%È¥µôÓÐʲôӰÏ죿
4Â¥2012-03-01 21:34:05
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 12 ¸ö»Ø´ð

dbb627

ÈÙÓþ°æÖ÷ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Mr123456(½ð±Ò+1): ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ ºÜ²»´í£¬ºÜÇ¿´ó¡£ 2012-03-01 20:48:57
³ôË®¹µ(½ð±Ò+5, ·ÂÕæEPI+1): ר¼ÒÐÁ¿àÁË~~ 2012-03-01 20:50:01
CODE:
function randwalk
ra=0;
for i=1:10
    ra=ra+walk(i);
end
mr=ra/10%10´ÎÔËÐÐÆ½¾ùÖµ

function rr=walk(x)
clc;close all;
z=0; % ÉèÖóõʼÊýÖµ£¬ÕâÀïÀûÓÃÒ»¸ö¸´ÊýÀ´±íʾλÖÃ
rand('state',x); % ³õʼ»¯Ëæ»úÊýµÄ״̬
ph=plot(z);hold on; % »æÍ¼
T=1; % ¼ÆËãʱ¼äµÄ²ÎÊý
z1=1; % λÖõÄÖмä±äÁ¿
ti=title('time = 0','Fontsize',14,'Fontname','Times new roman'); % ÔÚͼÌ⴦ʵʱÏÔʾʱ¼ä
while T<1001; % ½øÐÐÑ­»·1000´Î½øÐмÆËã
    [dx,dy]=choose_D(0.25,0.25,0.25,0.25); % Ëæ»úÉú³ÉÒ»¸öÎ»ÒÆÁ¿
    z1=z+[dx+i*dy]; % ¸üÐÂλÖÃÊýÖµ
    plot(real([z,z1]),imag([z,z1])); % Á¬½Ótʱ¿ÌºÍt+1ʱ¿ÌÁ½µã»æÖÆÏß¶Î
    z=z1; % ¸üÐÂzµÄÊýÖµ
    set(ti,'String',['time = ',num2str(T)]); % ¸üÐÂͼÌâ´¦µÄʱ¼äÊýÖµ
    T=T+1; % ʱ¼äÖµ¸üÐÂ
    pause(0.01); % ÔÝͣһϣ¬ÏÔʾ¶¯»­Ð§¹û
end
rr=abs(z)
function [dx,dy]=choose_D(p1,p2,p3,p4);
% p1=0.2; % Ïò×óÔ˶¯µÄ¼¸ÂÊ
% p2=0.3; % ÏòÉÏÔ˶¯µÄ¼¸ÂÊ
% p3=0.1; % ÏòÓÒÔ˶¯µÄ¼¸ÂÊ
% p4=0.4; % ÏòÏÂÔ˶¯µÄ¼¸ÂÊ
r=rand; % ²úÉúÒ»¸öËæ»úÊý
if r     dx=-1; % x·½ÏòµÄËæ»úÒÆ¶¯Á¿
    dy=0; % y·½ÏòµÄËæ»úÒÆ¶¯Á¿
elseif r     dx=0; % x·½ÏòµÄËæ»úÒÆ¶¯Á¿
    dy=-1; % y·½ÏòµÄËæ»úÒÆ¶¯Á¿
elseif r     dx=1; % x·½ÏòµÄËæ»úÒÆ¶¯Á¿
    dy=0; % y·½ÏòµÄËæ»úÒÆ¶¯Á¿
else
    dx=0; % x·½ÏòµÄËæ»úÒÆ¶¯Á¿
    dy=1; % y·½ÏòµÄËæ»úÒÆ¶¯Á¿
end

The more you learn, the more you know, the more you know, and the more you forget. The more you forget, the less you know. So why bother to learn.
2Â¥2012-03-01 19:38:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

dbb627

ÈÙÓþ°æÖ÷ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

ÔËÐÐÈçͼËùʾ


The more you learn, the more you know, the more you know, and the more you forget. The more you forget, the less you know. So why bother to learn.
3Â¥2012-03-01 19:58:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

dbb627

ÈÙÓþ°æÖ÷ (ÖøÃûдÊÖ)

¡ï ¡ï
xiegangmai(½ð±Ò+2, ר¼Ò¿¼ºË): лл²ÎÓ룡 2012-03-01 23:12:27
[dx,dy]=choose_D(0.25,0.25,0.25,0.25); % Ëæ»úÉú³ÉÒ»¸öÎ»ÒÆÁ¿
Õâ¾ä±íÃ÷Ëĸö·½Ïò¸ÅÂÊÏàµÈp1=p2=p3=p4=0.25
function [dx,dy]=choose_D(p1,p2,p3,p4);
ÏÂÃæµÄ¿ÉÒÔÈ¥µô
% p1=0.2; % Ïò×óÔ˶¯µÄ¼¸ÂÊ
% p2=0.3; % ÏòÉÏÔ˶¯µÄ¼¸ÂÊ
% p3=0.1; % ÏòÓÒÔ˶¯µÄ¼¸ÂÊ
% p4=0.4; % ÏòÏÂÔ˶¯µÄ¼¸ÂÊ
The more you learn, the more you know, the more you know, and the more you forget. The more you forget, the less you know. So why bother to learn.
5Â¥2012-03-01 22:05:48
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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