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dana1997$гæ (³õÈëÎÄ̳)
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×î½üÔÚÑо¿lotka¡ªvolterra·½³Ì£¬ÕÒÁ˺ܶà°ì·¨½â΢·Ö·½³Ì£¬·¢ÏÖ»¹ÊÇ1stopt×îºÃ¡£ ´úÂëµÄ¸ñʽ²»Ò»¶¨ÕýÈ·£¬Çó°ïæ¸ÄÏ´úÅܳÌÐò£¬¸Ð¼¤²»¾¡£¡£¡ Parameter a(1:7),b(1:8),c(1:8),d(1:8),e(1:8),f(1:8),g(1:8),h(1:8); Variable A,B,C,D,E,F,G; ODEFunction A' = A*(a1+b1*A+b2*B+b3*C+b4*D+b5*E+b6*F+b7*G)+b8; B'= B*(a2+c1*A+c2*B+c3*C+c4*D+c5*E+c6*F+c7*G)+c8; C'= C*(a3+d1*A+d2*B+d3*C+d4*D+d5*E+d6*F+d7*G)+d8; D'= D*(a4+e1*A+e2*B+e3*C+e4*D+e5*E+e6*F+e7*G)+e8; E'= E*(a5+f1*A+f2*B+f3*C+f4*D+f5*E+f6*F+f7*G)+f8; F'= F*(a6+g1*A+g2*B+g3*C+g4*D+g5*E+g6*F+g7*G)+g8; G'= G*(a7+h1*A+h2*B+h3*C+h4*D+h5*E+h6*F+h7*G)+h8; Data; //A B C D E F G 0.99062 3.325031321 1.20064 1.505528 0.465544 1.0456 0.465544 1.14162 3.34957033 0.72806 1.02674 0.5293 0.58934 0.5293 1.35414 3.371823121 1.08226 0.924514 0.629788 0.979 0.629788 1.54394 3.358702072 1.05092 1.221278 0.756664 1.5998 0.756664 1.75564 3.386495364 1.12072 1.26153 0.911154 1.7214 0.911154 2.14156 3.41386638 1.0099 1.033504 1.149582 0.9758 1.40958 2.51394 3.441276984 0.97434 1.08504 1.46752 2.0614 1.468836 2.75924 3.469425525 3.23728 0.951092 1.826014 0.87182 1.499694 3.30608 3.532804179 3.35756 1.53954 2.24755 2.1928 1.478168 3.94312 3.554224579 3.482 0.839842 2.933274 1.307 1.514688 4.34662 3.57388128 3.47258 1.519284 3.390792 1.3512 1.531788 4.78092 3.595427135 3.56552 1.11271 3.804548 2.4814 1.517656 5.18538 3.614506304 3.55198 1.285118 4.134148 0.9752 1.542748 5.54818 3.63956211 3.60134 1.42194 4.916166 1.2714 1.543972 6.09814 3.669662833 3.56924 1.69098 5.241606 2.1204 1.532076 |
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