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hitzhang

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¡ï ¡ï ¡ï ¡ï ¡ï
sunxiao(½ð±Ò+2,VIP+0):ÌæÂ¥Ö÷ллÈÈÐĵÄhitzhang£¬¹ÄÀø½»Á÷ 2-26 00:13
À¶µÄÀ¶(½ð±Ò+3,VIP+0):лл 2-26 08:07
>> a=randn(4)

a =

   -2.1707    0.5077    0.3803    0.0000
   -0.0592    1.6924   -1.0091   -0.3179
   -1.0106    0.5913   -0.0195    1.0950
    0.6145   -0.6436   -0.0482   -1.8740

>> id=abs(a-1)==min(abs(a(-1))

id =

     0     0     0     0
     0     0     0     0
     0     0     0     1
     0     0     0     0

>> [i j]=find(id==1)

i =

     3


j =

     4

>> a(i,j)

ans =

    1.0950

>>

[ Last edited by hitzhang on 2009-2-25 at 22:05 ]
2Â¥2009-02-25 21:59:43
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

dnp

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Сľ³æÀË×Ó

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¡ï ¡ï
sunxiao(½ð±Ò+2,VIP+0):Ð»Ð»Çø³¤µÄ²ÎÓ룬ϣÍû¾­³£¹âÁÙ£¬¹²Í¬Ìá¸ßÈËÆø 2-26 00:12
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min(abs(A*))

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What would Jesus do?
3Â¥2009-02-25 22:00:49
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hitzhang

ľ³æ (ÕýʽдÊÖ)

¡ï ¡ï ¡ï
sunxiao(½ð±Ò+3,VIP+0):лл»Ø´ð£¬»¶Ó­½»Á÷£¬¹²Í¬Ìá¸ß 2-26 00:11
»òÕß
>> a=randn(4)

a =

    0.6232    0.2120    1.0823   -0.6355
    0.7990    0.2379   -0.1315   -0.5596
    0.9409   -1.0078    0.3899    0.4437
   -0.9921   -0.7420    0.0880   -0.9499

>> b=a(abs(a-1)==min(abs(a(-1)))

b =

    0.9409

>> [i j]=find(a==b)

i =

     3


j =

     1

>>
4Â¥2009-02-25 22:10:49
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