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brqhl_ing

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function dx = Rossler(t,x£¬k1,k2)
dx1=-(1+0.015)*x(2)-x(3)+k1*(x(4)-x(1))+k2*(-x(4)-x(1))*(x(4)-x(1));
dx2=(1+0.015)*x(1)+0.15*x(2);
dx3=0.5+x(3)*(x(1)-10);
dx4=-(1+0.015)*x(5)-x(6)-k1*(x(4)-x(1))-k2*(-x(4)-x(1))*(x(4)-x(1));
dx5=(1+0.015)*x(4)+0.15*x(5);
dx6=0.5+x(6)*(x(4)-10);
dx=[dx1;dx2;dx3;dx4;dx5;dx6];
ÕâÊÇÉϸöFORÑ­»·ÀïÃæµÄ·½³Ì Ö»²»¹ýÕâ´Î¿ØÖÆÏͬ  ÓÐk1 k2
ͬÑù¶¨ÒåÎó²îº¯Êýe=((x(:,4)-x(:,1)).^2+(x(:,5)-x(:,2)).^2+(x(:,6)-x(:,3)).^2).^0.5;
ÈçºÎÕÒ³ök1 k2 ȡֵʹe=0  Õâ¸öe¿ÉÒÔÊÇñîºÏϵͳ¾­¹ýÒ»¶¨Ê±¼ä´ïµ½Îó²îº¯Êýe=0»­³ök1 k2ʹe=0µÄÇøÓò  £¨k1 k2Ïàͼ£©
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brqhl_ing

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ÒýÓûØÌû:
Originally posted by xiegangmai at 2010-07-13 23:51:05:
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brqhl_ing

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brqhl_ing

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brqhl_ing

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6Â¥2010-07-17 08:56:54
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free--fire

гæ (СÓÐÃûÆø)

¡ï ¡ï
brqhl_ing(½ð±Ò+10): 2010-07-17 11:40:27
anyuezhiji(½ð±Ò+2):¸ÐлӦÖú£¬»¶Ó­³£À´£¡ 2010-07-17 17:49:56
nono2009:´úÂ뽨ÒéÓÃ[code][/code]£¬¾Í²»»áÓÐÏÔʾÎÊÌâ¡£ 2010-07-18 11:11:38
ÒýÓûØÌû:
Originally posted by brqhl_ing at 2010-07-13 20:59:06:
function dx = Rossler(t,x£¬k1,k2)
dx1=-(1+0.015)*x(2)-x(3)+k1*(x(4)-x(1))+k2*(-x(4)-x(1))*(x(4)-x(1));
dx2=(1+0.015)*x(1)+0.15*x(2);
dx3=0.5+x(3)*(x(1)-10);
dx4=-(1+0.015)*x(5)-x(6)-k1*(x(4)-x( ...

CODE:
function help100716()

clc;
clear all;
tic;

global k1 k2 ;
n=0:0.01:0.5;
s=length(n);
K=zeros(s^2,3);
m=1;
for k1=0:0.01:0.5
    for k2=0:0.01:0.5
        [T,x]=ode45(@Rossler,[0,600],[0.2;0.3;0.6;0.4;0.7;0.1]);
        e=((x(:,4)-x(:,1)).^2+(x(:,5)-x(:,2)).^2+(x(:,6)-x(:,3)).^2).^0.5;
        if(min(e)<=1e-1)%% set the bar of the 'e' value
            K(m,:)=[k1 k2 min(e)];
            m=m+1;
        end
    end
end
if m>1
figure;
plot(K(1:m-1,1:2));
end
toc;
function dx = Rossler(t,x)
global k1 k2;
dx1=-(1+0.015)*x(2)-x(3)+k1*(x(4)-x(1))+k2*(-x(4)-x(1))*(x(4)-x(1));
dx2=(1+0.015)*x(1)+0.15*x(2);
dx3=0.5+x(3)*(x(1)-10);
dx4=-(1+0.015)*x(5)-x(6)-k1*(x(4)-x(1))-k2*(-x(4)-x(1))*(x(4)-x(1));
dx5=(1+0.015)*x(4)+0.15*x(5);
dx6=0.5+x(6)*(x(4)-10);
dx=[dx1;dx2;dx3;dx4;dx5;dx6];

[ Last edited by nono2009 on 2010-7-18 at 11:10 ]
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7Â¥2010-07-17 10:57:57
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free--fire

гæ (СÓÐÃûÆø)

¡ï
adu886886(½ð±Ò+1):ллÌṩÒâ¼û 2010-07-18 22:13:28
Ó¦¸ÃÊÇ K(m,: )=[k1 k2 min(e)];
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good luck !
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8Â¥2010-07-17 11:01:44
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brqhl_ing

Òø³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by free--fire at 2010-07-17 10:57:57:

function help100716()

clc;
clear all;
tic;

global k1 k2 ;
n=0:0.01:0.5;
s=length(n);
K=zeros(s^2,3);
m=1;
for k1=0:0.01:0.5
    for k2=0:0.01:0.5
        [T,x]=ode45(@Rossler,[0,60 ...

·Ç³£Ö®¸Ðл  ÎÒÔÚµ÷ÊÔÖУ¡£¡
9Â¥2010-07-17 14:57:26
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

brqhl_ing

Òø³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by free--fire at 2010-07-17 10:57:57:

function help100716()

clc;
clear all;
tic;

global k1 k2 ;
n=0:0.01:0.5;
s=length(n);
K=zeros(s^2,3);
m=1;
for k1=0:0.01:0.5
    for k2=0:0.01:0.5
        [T,x]=ode45(@Rossler,[0,60 ...



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10Â¥2010-07-18 09:15:20
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