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4Â¥: Originally posted by lijie169 at 2012-06-10 14:30:59
ÄãÏëÔõôָµãÃÔ½ò£¿£¡£¡...

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5Â¥2012-06-11 21:44:28
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lijie169

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΢ЦµÄ´Ìâ¬: ½ð±Ò+20, ¡ï¡ï¡ïºÜÓаïÖú 2012-06-07 22:01:21
ÄãдһÏÂÄã¾ÍÖªµÀÁË£¬ÕâÊǸöµÝ¹éµ÷Óã¬
CODE:
function f=func(n)
f=0;
if n==1
return 1;
else
for i=1:n
f=f+b*func(n-i)
end

bÊÇÇ°ÃæµÄϵÊý
f(3)=a*f(2)+b*f(1)+c*f(0)
¸Ð¾õÄãÃ²ËÆ²îÒ»Ïîn==0µÄ˵·¨
2Â¥2012-06-07 21:07:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

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function f=func(n)
f=0;
if n==1
    return f=1;
else
    for i=2:n
        a=(-1)^(i+1)*factorial(n)*2^(i*(n-i))/(factorail(n-i)*factorial(n));
        b=symsum(a,1,n);
        f=f+b*func(n-i)
    end
3Â¥2012-06-07 22:00:35
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lijie169

Í­³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
3Â¥: Originally posted by ΢ЦµÄ´Ì⬠at 2012-06-07 22:00:35
¶àл¥ÉϵĻظ´£¬ÒÔǰûд¹ýº¯Êý£¬³¢ÊÔ×ÅдÁËһϣ¬Ò»Í·ÎíË®Äܲ»ÄܸøÖ¸µãÃÔ½ò
function f=func(n)
f=0;
if n==1
    return f=1;
else
    for i=2:n
        a=(-1)^(i+1)*factorial(n)*2^(i*(n-i)) ...

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4Â¥2012-06-10 14:30:59
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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