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‚RŽŸŒ³‚Ì‹…–ÊE‘o‹È–Ê

’˜ŽÒFMathcot.H.I.

‰”Å:2007.12.01

Update:2011.09.25

‚½‚¾‚¢‚Ü€”õ’†‚Å‚·B


‹…–Ê
’†S(xo,yo,zo), ”¼Œar‚Ì‹…–Ê
(x-xo)^2+(y-yo)^2+(z-zo)^2=R^2 (R>0)

4“_(x1,y1,z1), (x2,y2,z2), (x3, y3,z3),(x4,y4,z4)‚ð’ʂ蔼ŒaR‚Ì‹…–Ê, ‹…‚Ì’†SQ(xo,yo,zo)
solve([(x1-xo)^2+(y1-yo)^2+(z1-zo)^2=R^2,
(x2-xo)^2+(y2-yo)^2+(z2-zo)^2=R^2,
(x3-xo)^2+(y3-yo)^2+(z3-zo)^2=R^2,
(x4-xo)^2+(y4-yo)^2+(z4-zo)^2=R^2],[xo,yo,zo,R]);



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‰”Å:2007.12.01
Update:2007.12.02


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