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ny0=64;
fi=2*pi/16;
t=2.8;
I=1i;
H0=zeros(ny0,ny0);
for j=1:ny0;
        if(mod(jl,2)==1)
        m=(j(l)+1)/2;
        else
        m=j(l)/2;
    end
        Ax=-(m-1)*0.5*fi;  
          if (mod(j,4)==1)
          H0(j,j+1)=t*exp(I*Ax);  
      end
end
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ny0=64;
fi=2*pi/16;
t=2.8;
I=1i;
H0=zeros(ny0,ny0);
j=1:ny0;
l=1:1:length(j);
        if(mod(j(l),2)==1)
        m=(j(l)+1)/2;
        else
        m=j(l)/2;
    end
        Ax=-(m-1)*0.5*fi;  
          if (mod(j(l),4)==1)
          H0(j(l),j(l)+1)=t*exp(I*Ax);  
      end
µ«ÊÇºÜÆæ¹Ö°¡£¬ÀïÃæÃ»Êý¾Ý°¡¡£
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everythinghasitsseason.enjoyyourlife.
2Â¥2012-12-05 20:18:18
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3Â¥2012-12-05 20:28:42
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everythinghasitsseason.enjoyyourlife.
4Â¥2012-12-05 20:29:27
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everythinghasitsseason.enjoyyourlife.
5Â¥2012-12-05 21:09:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

libralibra

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xzhdty: ллæôÆï½«¾ü 2012-12-05 21:59:11
ÄãÄÜ×Ðϸ¼ì²éһϵÄÄãµÄ´úÂëÂð?
µÚÒ»¸öif(mod(j(l),2)==1)ÉÙÁËjºóÃæµÄÀ¨ºÅ,µ«ÊÇlÓÖÊÇʲô?Ç°ÃæÃ»Óж¨Òå°¡
matlab/VB/python/c++/Javaд³ÌÐòÇë·¢QQÓʼþ:790404545@qq.com
6Â¥2012-12-05 21:33:22
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

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ÒýÓûØÌû:
6Â¥: Originally posted by libralibra at 2012-12-05 21:33:22
ÄãÄÜ×Ðϸ¼ì²éһϵÄÄãµÄ´úÂëÂð?
µÚÒ»¸öif(mod(j(l),2)==1)ÉÙÁËjºóÃæµÄÀ¨ºÅ,µ«ÊÇlÓÖÊÇʲô?Ç°ÃæÃ»Óж¨Òå°¡

ллÄãÁË¡£Äã˵µÄÊÇÉÏÃæÄǼ¸ÐÐÓï¾ä£¬Äã¿´ÏÂÏÂÃæÄǼ¸ÐУ¬l=1:1£ºlength£¨j£©±íʾjµÄ³¤¶È
everythinghasitsseason.enjoyyourlife.
7Â¥2012-12-06 09:03:01
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baobiao007

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8Â¥2012-12-06 17:02:18
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libralibra

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

æôÆï½«¾ü

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

ÒýÓûØÌû:
7Â¥: Originally posted by Ìïɽ¶« at 2012-12-06 09:03:01
ллÄãÁË¡£Äã˵µÄÊÇÉÏÃæÄǼ¸ÐÐÓï¾ä£¬Äã¿´ÏÂÏÂÃæÄǼ¸ÐУ¬l=1:1£ºlength£¨j£©±íʾjµÄ³¤¶È...

j=1:ny0;
Ñ­»·±êÖ¾l = 1:length(j),ËùÒÔj(l)==l
ÄãµÄ´úÂë¾ÍÊÇ
CODE:
ny0=64;
fi=2*pi/16;
t=2.8;
I=1i;
H0=zeros(ny0,ny0);
j=1:ny0;
for l=1:length(j)
    if(mod(l,2)==1)
        m=(l+1)/2;
    else
        m=l/2;
    end
    Ax=-(m-1)*0.5*fi;
    if (mod(l,4)==1)
        H0(l,l+1)=t*exp(I*Ax);
    end
end

È»ºó·ÖÎöÒ»ÏÂ:
j = 1:64;
¿ªÊ¼Ñ­»·jµÄÔªËØl
Èç¹ûÊÇÆæÊý,×Ô¼Ó1³ýÒÔ2,Èç¹ûÊÇżÊý,³ýÒÔ2,¸³Öµ¸øm
¸ù¾ÝmµÃµ½Ax
Èç¹ûµ±Ç°ÔªËسý4Óà1,¸øH0µÄ(l,l+1)ÔªËØ¸³Öµ.
jÖÐËùÓгýÒÔ4Óà1µÄÔªËØÊÇ
CODE:
1     5     9    13    17    21    25    29    33    37    41    45    49    53    57    61

Ò»¹²16¸ö,µÈÓÚÆäʵÄãÖ»ÐèÒª¸øH0µÄÕâ16¸öÔªËØ¸³Öµ
CODE:
(1,2)     (5,6)     (9,10)    (13,14)    (17,18)    (21,22)    (25,26)    (29,30)    (33,34)    (37,38)    (41,42)    (45,46)    (49,50)    (53,54)    (57,58)    (61,62)

¼ÈÈ»¸øH0¸³ÖµµÄÔªËØ¸öÊýÖ»ÓÐ16¸ö,ΪʲôҪѭ»·64´ÎÄØ?µÈÓÚÓÐ48´ÎÑ­»·¼ÆËãµÄmºÍAx¸ù±¾Ã»ÓÐÓô¦.
ÄÇôÐÞ¸ÄÒ»ÏÂ:revise 1
CODE:
for l=1:length(j)
    if (mod(l,4)==1)
        m=(l+1)/2;
        Ax=-(m-1)*0.5*fi;
        H0(l,l+1)=t*exp(I*Ax);
    end
end

¼ÈÈ»mod(l,4)==1,¾ÍÓÐl=4*n+1=2*2n+1,˵Ã÷l³ýÒÔ2Ò²Óà1,Ö±½Ó¼ÆËãmÈ»ºó¸øH0ÔªËØ¸³Öµ.

revise2,matlabµÄfor¿ÉÒÔÖ¸¶¨²½³¤,Á¬ifÅж϶¼²»ÐèÒªÁË
CODE:
for l=1:4:length(j)
    m=(l+1)/2;
    Ax=-(m-1)*0.5*fi;
    H0(l,l+1)=t*exp(I*Ax);
end

ÏòÁ¿»¯µÄ°ì·¨:
revise3,¼ÈÈ»ÊǸøÈ«0¾ØÕóH0µÄ16¸öÔªËØ¸³Öµ,ÄÇÄãÖ±½ÓÔËÓÃÏòÁ¿»¯¼ÆËã³öÀ´½á¹û,È»ºó¸³Öµ¾ÍÐÐÁË.²»¹ý¿ÉÄÜÓÐÐ©ÈÆ,ÐèÒªÓúü¸¸öº¯ÊýÀ´ÊµÏÖ
¿ÉÒÔͨ¹ýsparseÀ´ÊµÏÖ,²»¹ýsparseÖ®ºóÓÃfullÖ»ÄÜ»¹Ô­µ½61*62ά,ÒòΪÆäËûÔªËØ¶¼ÊÇ0
ËùÒÔÐèÒªÓþֲ¿¾ØÕó¸³ÖµµÄ°ì·¨
CODE:
ny0=64;
fi=2*pi/16;
t=2.8;
I=1i;
H0=zeros(ny0,ny0);
j=1:ny0;
l = j(mod(j,4)==1); % ÐÐϱê,16¸ö
n = l+1; % ÁÐϱê,16¸ö
m = (l+1)/2; % m,16¸ö
Ax = -(m-1)*0.5*fi; % Ax,16¸ö
expAx = t*exp(I*Ax); % H0µÄ±»¸³ÖµÔªËØ,16¸ö
h = sparse(l,n,expAx); % ¸ù¾ÝϱêºÍÔªËØÉú³ÉÏ¡Êè¾ØÕó
H0(1:max(l),1:max(n)) = full(h); % ¸øH0¶ÔӦλÖø³Öµ

revise 4,ÖÕ¼«ÏòÁ¿»¯°ì·¨,µÃµ½ÐÐÁкźó,Ö±½ÓµÃµ½Ï±êÐòÁÐ,½«H0¿´×öһάÏòÁ¿¸³Öµ
CODE:
ny0=64;
fi=2*pi/16;
t=2.8;
I=1i;
H0=zeros(ny0,ny0);
j=1:ny0;
l = j(mod(j,4)==1); % ÐÐϱê,16¸ö
n = l+1; % ÁÐϱê,16¸ö
m = (l+1)/2; % m,16¸ö
Ax = -(m-1)*0.5*fi; % Ax,16¸ö
expAx = t*exp(I*Ax); % H0µÄ±»¸³ÖµÔªËØ,16¸ö
H0(sub2ind([ny0,ny0],l,n)) = expAx; % Ö±½Ó¸øH0¶ÔӦλÖø³Öµ

matlab/VB/python/c++/Javaд³ÌÐòÇë·¢QQÓʼþ:790404545@qq.com
9Â¥2012-12-06 22:24:58
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