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СÇBÇB

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c=dot(a,b);
d=dot(a,a);
e=dot(b,b);
m=d*e-(c^2);
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wurongjun

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ÊÇ´óÓÚÁãµÄ!
>> a=[1 2 3];b=-[1 2 1];
>> c=dot(a,b);
d=dot(a,a);
e=dot(b,b);
m=d*e-(c^2)

m =

    20

>>
ÉÆ¶ñµ½Í·ÖÕÓб¨,È˼äÕýµÀÊDz×É£.
3Â¥2017-11-01 11:52:00
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СÇBÇB

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
3Â¥: Originally posted by wurongjun at 2017-11-01 11:52:00
Õâ¸öÊÇ¿ÂÎ÷²»µÈʽ!
ÊÇ´óÓÚÁãµÄ!
>> a=;b=-;
>> c=dot(a,b);
d=dot(a,a);
e=dot(b,b);
m=d*e-(c^2)

m =

    20

>>

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4Â¥2017-11-01 13:58:11
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wurongjun

ר¼Ò¹ËÎÊ (Ö°Òµ×÷¼Ò)

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Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
ÒýÓûØÌû:
4Â¥: Originally posted by СÇBÇB at 2017-11-01 13:58:11
ÓÿÂÎ÷²»µÈʽ¼ÆËã³öÀ´ÊÇ´óÓÚµÈÓÚ0µÄ£¬µ«ÊÇÎÒÓÃmatlab¼ÆËã³öÀ´µÄmСÓÚÁãÁË¡£ËùÒԾͲ»ÖªµÀÄÄÀï³öÁËÎÊÌâ¡£
...

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