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[x,y,z,k] = solve('x/y=0.125848075','z/k=2.158742034','(x+y)/(z+k)=0.13229852','-883.8/2287.5971=2*log(1-x-y)/17+log(1-z-k)/17','x','y','z','k') x = .31599136536326824816867266602853 y = .14760842566859177176337077066243e-1 z = .11729096823180789357594128528579 k = .68214384279073884693925720614263 ¼ÆËã³öX±ÈY´ó£¬µ«µÚÒ»¸öʽ×ÓÃ÷ÏÔY´ó solve('6.568+2*log(1-1.26x)+log(1-0.166x)') ??? Error using ==> solve ' 6.568+2*log(1-1.26x)+log(1-0.166x) ' is not a valid expression or equation. ÕâÓÖÊÇʲôÇé¿ö |
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- ³æºÅ: 3612258
- ×¢²á: 2014-12-25
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6Â¥2018-05-17 09:45:59
george1990
½ð³æ (СÓÐÃûÆø)
- Ó¦Öú: 11 (СѧÉú)
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- ºì»¨: 2
- Ìû×Ó: 130
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- ³æºÅ: 2142478
- ×¢²á: 2012-11-22
- ÐÔ±ð: GG
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2Â¥2014-04-14 14:43:19
tc57x
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3Â¥2014-04-14 15:09:48
george1990
½ð³æ (СÓÐÃûÆø)
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- Ìû×Ó: 130
- ÔÚÏß: 75.3Сʱ
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- ×¢²á: 2012-11-22
- ÐÔ±ð: GG
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>> syms x y z k d1 d2 d3 d4 >> [x,y,z,k] = solve('x/y=d1','z/k=d2','(x+y)/(z+k)=d3','d4=2*log(1-x-y)/17+log(1-z-k)/17','x','y','z','k') Warning: Possibly spurious solutions [solvelib::checkSolutions] Warning: Explicit solution could not be found. °ÑÊýÖµ¸Ä³É·ûºÅºó£¬·¢ÏÖmatlab²»ÄÜÓÃsolveÇó³ö½âÎö½â£¬¶øÇÒ»¹ÓпÉÄÜÇó³öÐé¼Ù½â£¬Õâ¸ö¿ÉÄÜÊdzöÏÖÎÊÌâµÄÔÒò£¬ÒòΪÎÒ·¢ÏÖÇó³öµÄx,y,z,kµÄ½â¾ùÊÇ´íµÄ |

4Â¥2014-04-14 17:22:16









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