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kangrui0713

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syms a b c x z x1 x2 z1 z2;
h=((c-z)*x)/((x-a)^2+b^2+(z-c)^2)^(3/2);
int(int(h,x,x1,x2),z,z1,z2)
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george1990

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syms a b c x z x1 x2 z1 z2;
h=((c-z).*x)./((x-a).^2+b.^2+(z-c).^2).^(3/2);
int_in=int(h,x);
int_in_ans=subs(int_in,x,x2)-subs(int_in,x,x1);
int_out=int(int_in_ans,z);
int_out_ans=subs(int_out,z,z2)-subs(int_out,z,z1);
matlab¿ÉÒÔ°ÑÀïÃæµÄ»ý·ÖÒ²¾ÍÊÇint_inÔ­º¯ÊýËã³öÀ´£¬µ«ÊÇÔÙ¶Ôz½øÐлý·Ö È´ÏÔʾÎÞ·¨ÕÒµ½Ô­º¯Êý ¹À¼ÆÖ»ÄÜÓÃÊýÖµ»ý·ÖÀ´ÅªÕâ¸öÁË
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2Â¥2014-03-31 19:22:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

kangrui0713

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
2Â¥: Originally posted by george1990 at 2014-03-31 19:22:38
syms a b c x z x1 x2 z1 z2;
h=((c-z).*x)./((x-a).^2+b.^2+(z-c).^2).^(3/2);
int_in=int(h,x);
int_in_ans=subs(int_in,x,x2)-subs(int_in,x,x1);
int_out=int(int_in_ans,z);
int_out_ans=subs(int_out,z, ...

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3Â¥2014-04-01 14:43:53
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

HIV5

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4Â¥2014-04-02 11:38:57
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