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liuke_33

ľ³æ (ÖøÃûдÊÖ)

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mralgebra

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liuke_33: ½ð±Ò+2 2015-06-27 09:15:23
P=P1*S1/S+P2*S2/S+P3*S3/SÈÎÒâÈý½ÇÐζ¼³ÉÁ¢

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2Â¥2015-06-27 02:01:05
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liuke_33

ľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by mralgebra at 2015-06-27 02:01:05
P=P1*S1/S+P2*S2/S+P3*S3/SÈÎÒâÈý½ÇÐζ¼³ÉÁ¢

S1¡¢S2¡¢S3ÊÇʲô¶«Î÷£¿Äܲ»ÄÜ»­¸ö²Ýͼ¸øÎÒ¿´¿´ÄØ£¬»¹ÓÐÕâÀï±ß»¹ÊÇÓÐP1¡¢P2¡¢P3
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3Â¥2015-06-27 09:23:37
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feixiaolin

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4Â¥2015-06-27 09:54:55
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mralgebra

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
3Â¥: Originally posted by liuke_33 at 2015-06-27 09:23:37
S1¡¢S2¡¢S3ÊÇʲô¶«Î÷£¿Äܲ»ÄÜ»­¸ö²Ýͼ¸øÎÒ¿´¿´ÄØ£¬»¹ÓÐÕâÀï±ß»¹ÊÇÓÐP1¡¢P2¡¢P3...

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5Â¥2015-06-27 10:28:18
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liuke_33

ľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
4Â¥: Originally posted by feixiaolin at 2015-06-27 09:54:55
http://blog.sina.com.cn/u/2056445344

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6Â¥2015-06-27 10:34:28
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wurongjun

ר¼Ò¹ËÎÊ (Ö°Òµ×÷¼Ò)

¡ï ¡ï ¡ï
feixiaolin: ½ð±Ò+3 2015-06-27 11:22:10
¼ÆËãÍâÐĵÄ×ø±êÓ¦ÏȼÆËãÏÂÁÐÁÙʱ±äÁ¿£º
d1£¬d2£¬d3·Ö±ðÊÇÈý½ÇÐÎÈý¸ö¶¥µãÁ¬ÏòÁíÍâÁ½¸ö¶¥µãÏòÁ¿µÄµã³Ë¡£
c1=d2d3£¬c2=d1d3£¬c3=d1d2£»c=c1+c2+c3;
af=(c2+c3)/2c;
bt=(c1+c3)/2c;
gm=(c1+c2)/2c ;
ÍâÐÄ×ø±ê£ºP=af*P1+bt*P2+gm*P3;
P1,P2,P3,·Ö±ðÊÇABCÈýµãµÄ×ø±ê!
ÀýÈçÆ½ÃæÇé¿ö,¿Õ¼äÀàËÆ)
>> P=[1 2 3;0 1 0]
P =
     1     2     3
     0     1     0
>> plot(P(1,[1 2 3 1]),P(2,[1 2 3 1]),'-or')
>> d1=(P(:,2)-P(:,1))'*(P(:,3)-P(:,1))
d1 =
     2
>> d2=(P(:,1)-P(:,2))'*(P(:,3)-P(:,2))
d2 =
     0
>> d3=(P(:,1)-P(:,3))'*(P(:,2)-P(:,3))
d3 =
     2
>> c1=d2*d3
c1 =
     0
>> c2=d1*d3
c2 =
     4
>> c3=d1*d2
c3 =
     0
>> af=(c2+c3)/(c1+c2+c3)/2
af =
    0.5000
>> bt=(c1+c3)/(c1+c2+c3)/2
bt =
     0
>> gm=(c1+c2)/(c1+c2+c3)/2
gm =
    0.5000
>> Pc=af*P(:,1)+bt*P(:,2)+gm*P(:,3)
Pc =
     2
     0
>> hold on
>> plot(Pc(1,,Pc(2,,'-*g')
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7Â¥2015-06-27 11:16:59
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liuke_33

ľ³æ (ÖøÃûдÊÖ)

Ëͺ컨һ¶ä
ÒýÓûØÌû:
7Â¥: Originally posted by wurongjun at 2015-06-27 11:16:59
¼ÆËãÍâÐĵÄ×ø±êÓ¦ÏȼÆËãÏÂÁÐÁÙʱ±äÁ¿£º
d1£¬d2£¬d3·Ö±ðÊÇÈý½ÇÐÎÈý¸ö¶¥µãÁ¬ÏòÁíÍâÁ½¸ö¶¥µãÏòÁ¿µÄµã³Ë¡£
c1=d2d3£¬c2=d1d3£¬c3=d1d2£»c=c1+c2+c3;
af=(c2+c3)/2c;
bt=(c1+c3)/2c;
gm=(c1+c2)/2c ;
ÍâÐÄ×ø±ê£ºP= ...

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8Â¥2015-06-28 00:17:00
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wurongjun

ר¼Ò¹ËÎÊ (Ö°Òµ×÷¼Ò)

ÒýÓûØÌû:
8Â¥: Originally posted by liuke_33 at 2015-06-28 00:17:00
ÄãµÄ»Ø´ðÌ«¸øÁ¦ÁË£¬¿ÉÒÔÈÏʶÏÂô
...

ºÃµÄûÓÐÎÊÌâ!
ÉÆ¶ñµ½Í·ÖÕÓб¨,È˼äÕýµÀÊDz×É£.
9Â¥2015-06-28 08:54:43
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

liuke_33

ľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
9Â¥: Originally posted by wurongjun at 2015-06-28 08:54:43
ºÃµÄûÓÐÎÊÌâ!...

QQ£º1471325210
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