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caqq鐵蟲 (小有名氣)
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[求助]
matlab求解非線性方程組 代碼
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如題,我前年用過,現(xiàn)在忘記了。 大概方程是這樣的: x1+x3+x5=2.9295 x2+2*x3+x4=8.44 x1+x4+2*x5=8.17 x1*x2=3.91*x4 x1*x1=2.76*x5 我知道是很簡(jiǎn)單的。但是就不記得代碼了。麻煩高手啊,謝謝! |
鐵桿木蟲 (著名寫手)
方丈大師
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>> [x1,x2,x3,x4,x5]=solve('x1+x3+x5-2.9295','x2+2*x3+x4-8.44','x1+x4+2*x5-8.17','x1*x2-3.91*x4','x1*x1-2.76*x5') x1 = 2.0095741986780655181324308790396 - 1.3654278339897897047244804778903*i - 3.0172870993390327590662154395198 1.3654278339897897047244804778903*i - 3.0172870993390327590662154395198 x2 = 6.2924594945741808211286568834273 7.8454202330330394065557153228466*i - 4.1486464139537570772309951083803 - 7.8454202330330394065557153228466*i - 4.1486464139537570772309951083803 x3 = -0.5432584233130615848152719406167 3.323733378323197459074302636975 - 1.6199980997608124254578087112391*i 1.6199980997608124254578087112391*i + 3.323733378323197459074302636975 x4 = 3.2340573520519423485018869978062 5.9411796573073621590823898344303 - 4.6054240335114145556400979003685*i 4.6054240335114145556400979003685*i + 5.9411796573073621590823898344303 x5 = 1.4631842246349960666828410615771 2.9854259337506021301822891891294*i + 2.6230537210158352999919128025448 2.6230537210158352999919128025448 - 2.9854259337506021301822891891294*i |
鐵蟲 (小有名氣)
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