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Edstrayer

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10Â¥: Originally posted by fjl19931201 at 2015-11-06 10:58:32
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11Â¥2015-11-06 11:01:53
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fjl19931201

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9Â¥: Originally posted by wurongjun at 2015-11-06 10:37:57
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A =








>> factor(det(A))

ans =

-4*r2^3*r1^3*(r1-r2)^9...

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12Â¥2015-11-06 11:08:16
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fjl19931201

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
11Â¥: Originally posted by Edstrayer at 2015-11-06 11:01:53
ÌáÈ¡¹«ÒòʽµÄʱºòÊÇ´íÎóµÄ£¬»ØÍ··­·­ÐÐÁÐʽµÄÐÔÖʰÉ...

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13Â¥2015-11-06 11:09:54
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hank612

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

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ÒýÓûØÌû:
3Â¥: Originally posted by hank612 at 2015-11-06 07:50:01
Èà r_2=k*r_1, ÔòÐÐÁÐʽµÈÓÚ
-4r_1^{15}k^2(k-1)^7(k^3+16k^2+17k+6)

@wurongjun @Edstrayer µÄ´ð°¸ÊǶԵģ¬ÎҵĴð°¸ÊÇ´íµÄ¡£

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(2) ½«µÚÎåÁмõÈ¥µÚ¶þÁУ¬²¢ÌáÈ¡Òò×Ó(k-1); ½«µÚËÄÁмõÈ¥µÚÒ»ÁУ¬²¢ÌáÈ¡Òò×Ó(k-1)£»½«µÚÈýÁмõÈ¥µÚÒ»ÁУ¬²¢ÌáÈ¡Òò×Ó(k-1)£»½«µÚ¶þÁмõÈ¥µÚÒ»ÁУ¬²¢ÌáÈ¡Òò×Ó2£»
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(3)½«µÚËÄÁмõÈ¥2±¶µÄµÚÈýÁУ» ½«µÚÈýÁмõÈ¥2±¶µÄµÚÒ»ÁУ¬²¢ÌáÈ¡Òò×Ó(k-1)£» ½«µÚ¶þÁмõÈ¥µÚÒ»ÁУ¬²¢ÌáÈ¡Òò×Ó(k-1)£»ÐÐÁÐʽ±ä³É3*3£¬ ÕûÌåÒò×ÓΪ, ÎÒдһÏ£º
1                     3                       3(k+1)
k+3                4(k+2)              8(k^2+k+1)
k^2+3k+6     5(k^2+zk+3)     15(k^3+k^2+k+1)

(4)½«µÚÈýÁмõÈ¥µÚ¶þÁеÄ(k+1)±¶£¬²¢Ìá³ö¹«Òò×Ó 2k(k-1); ½«µÚ¶þÁмõÈ¥µÚÒ»ÁеÄ3±¶£¬²¢Ìá³ö¹«Òò×Ó (k-1);ÐÐÁÐʽ±ä³É2*2£¬ ÕûÌåÒò×ÓΪ, ¸Ã¾ØÕóΪ
1        2
2k+3   5(k+1)
Õâ¸öÐÐÁÐʽµÈÓÚ k-1.

(5) ×ÛÉÏËùÊö£¬ÐÐÁÐʽµÈÓÚ
We_must_know. We_will_know.
14Â¥2015-11-06 11:31:42
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fjl19931201

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
14Â¥: Originally posted by hank612 at 2015-11-06 11:31:42
wurongjun Edstrayer µÄ´ð°¸ÊǶԵģ¬ÎҵĴð°¸ÊÇ´íµÄ¡£

£¨1£©Éèr_2=k\cdot r_1, ´ÓµÚ¶þµ½µÚÁùÐÐÌáÈ¡r1µÄ¸÷¸ö´ÎÃÝ×÷¹«Òò×Ó£»
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àÅàÅ£¬Ð»Ð»¡£¡£¡£¹þ¡£¡£¡£

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15Â¥2015-11-06 11:47:11
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peterflyer

ľ³æÖ®Íõ (ÎÄѧ̩¶·)

peterflyer


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Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
ÒýÓûØÌû:
3Â¥: Originally posted by hank612 at 2015-11-06 07:50:01
Èà r_2=k*r_1, ÔòÐÐÁÐʽµÈÓÚ
-4r_1^{15}k^2(k-1)^7(k^3+16k^2+17k+6)

´ËÏë·¨¶ÔÓÚ»¯¼òÐÐÁÐÊ½ÕæµÄÊÇÃîÊÖ¡£ºÇºÇ¡£
16Â¥2015-11-06 16:08:03
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ÊýѧÀÏѧͽ

½ð³æ (СÓÐÃûÆø)

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17Â¥2015-11-07 18:25:33
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ÊýѧÀÏѧͽ

½ð³æ (СÓÐÃûÆø)

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18Â¥2015-11-07 18:26:45
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Íõ˳ƽ

Òø³æ (ÖøÃûдÊÖ)

19Â¥2015-11-07 18:27:51
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shabaolin

Í­³æ (ÖøÃûдÊÖ)

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