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cyclonelee

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r1=(-k*sin(a)*sin(b)+z*tan(b)+m)^2+(z-k*sin(a)*cos(b))^2
r2=(-k*sin(a)*sin(b)+z*tan(b)-m)^2+(z-k*sin(a)*cos(b))^2
r3=(k*sin(a)*sin(b)+z*tan(b))^2+(2*k*cos(a)-n)^2+(k*sin(a)*cos(b)+z)^2

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2Â¥2013-08-22 18:44:10
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cyclonelee

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by ÐűËÄÏɽ at 2013-08-22 18:44:10
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r1=120 r2=110 r3=100
m=40 n=30 k=10
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3Â¥2013-08-22 22:06:21
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cyclonelee: ½ð±Ò+2, ¡ïÓаïÖú, ¶àл£¡ 2013-08-22 23:02:34
xiegangmai: ½ð±Ò+1, лл²ÎÓ룡 2013-08-25 00:39:32
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4Â¥2013-08-22 22:45:13
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cyclonelee: ½ð±Ò+8, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ·Ç³£¸Ðл£¡£¡£¡£¡ÎÒÏÈÊÔÊÔÈ¥£¡¶àл 2013-08-22 23:03:28
xiegangmai: ½ð±Ò+1, лл²ÎÓ룡 2013-08-25 00:39:37
MATLAB¡¢MSСÎÊÌâ¡¢ÆÕͨÎÊÌâÇë·¢ÌûÇóÖú£¡Ê±¼ä¾«Á¦ÓÐÏÞ£¬Ë¡²»½ÓÊÜÎÞ³¥Ë½ÐÅÇóÖú¡£
5Â¥2013-08-22 22:48:47
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cyclonelee

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
4Â¥: Originally posted by ÐÇÔÂÒ¹dh at 2013-08-22 22:45:13
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cyclonelee

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
5Â¥: Originally posted by ÔÂÖ»À¶ at 2013-08-22 22:48:47
ÊýÖµ½â¿É²Î¿¼£º
http://muchong.com/bbs/viewthread.php?tid=6150808&authorid=1122189

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function solvenonl
clear all;clc
x0=100*[1 1 1];
x=fsolve(@nonl,x0)


function f=nonl(x)
a=x(1);
b=x(2);
z=x(3);
r1=120;
r2=110;
r3=90;
m=40;
n=30;
k=10;
f(1)=(-k*sin(a)*sin(b)+z*tan(b)+m)^2+(z-k*sin(a)*cos(b))^2-r1;
f(2)=(-k*sin(a)*sin(b)+z*tan(b)-m)^2+(z-k*sin(a)*cos(b))^2-r2;
f(3)=(k*sin(a)*sin(b)+z*tan(b))^2+(2*k*cos(a)-n)^2+(k*sin(a)*cos(b)+z)^2-r3;

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Solver stopped prematurely.

fsolve stopped because it exceeded the function evaluation limit,
options.MaxFunEvals = 300 (the default value).


x =

  101.4392  100.5481   98.0448

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ÐÇÔÂÒ¹dh

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
6Â¥: Originally posted by cyclonelee at 2013-08-22 22:55:28
ÄÜ·ñ¸æÖªÊéÃû...

¶î¡£¡£¡£Ç°¶Îʱ¼ä¿´µÄ£¬½ÐʲôMatlabÓÐÈëÃŵ½¾«Í¨»¹ÊÇɶµÄ£¬¾ßÌåÍüÁË£¬ºÃ¶àÊéÉ϶¼ÓÐÕâ·½ÃæµÄÄÚÈݵģ¬ÄãÕÒµ½Êéºó¿ÉÒÔÏÈ¿´¿´Ä¿Â¼µÄ°¡¡£¡£¡£
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cyclonelee: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú, ¶àл£¡ 2013-08-23 09:19:47
xiegangmai: ½ð±Ò+2, лл²ÎÓ룡 2013-08-25 00:39:47
ÒýÓûØÌû:
7Â¥: Originally posted by cyclonelee at 2013-08-22 23:24:37
ÊÔ×öÁËһϣº
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function solvenonl
clear all;clc
x0=100*;
x=fsolve(@nonl,x0)


function f=nonl(x)
a=x(1);
b=x(2);
z=x(3);
r1=120;
r2=110;
r3=90;
m=40;
n=30;
k=10;
f(1)=(- ...

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x0=100*[1 1 1]; ÕâÀÄãÏȸøÎ´ÖªÊýÒ»¸ö´ó¸ÅµÄ³õÖµ£¬Ô­À´ÕâÀïµÄx0Ö»ÊʺÏÄǸöÌû×ÓÖеÄÇéÐΡ£
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9Â¥2013-08-22 23:47:58
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cyclonelee

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
9Â¥: Originally posted by ÔÂÖ»À¶ at 2013-08-22 23:47:58
µÚÈýÐÐ
x0=100*; ÕâÀÄãÏȸøÎ´ÖªÊýÒ»¸ö´ó¸ÅµÄ³õÖµ£¬Ô­À´ÕâÀïµÄx0Ö»ÊʺÏÄǸöÌû×ÓÖеÄÇéÐΡ£
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