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zzstephen

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dx/(1+(dx)^2) + x = 0.1sin(2t)   

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zzstephen

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7Â¥: Originally posted by zzstephen at 2011-11-07 00:40:53:
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f = @(t,x,dx) dx + (x-0.1*sin(2*t))*(1+dx^2);
t0 = 0;
x0 = 0.1;
[x0mod,dx0mod] = decic(f,t0,x0,[],0,[]);
[t,x] = ode15i(f,[0 2*pi],x0mod,dx0mod);
plot(t,x,'o-')
9Â¥2011-11-07 00:45:57
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guojunhang

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soliton923(½ð±Ò+1): лл²ÎÓëÌÖÂÛ~~~ 2011-11-06 18:01:45
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f(t,x,dx/dt,....) = 0
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2Â¥2011-11-06 14:40:34
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yimeng123456

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soliton923(½ð±Ò+1): лл²ÎÓëÌÖÂÛ~~~ 2011-11-06 18:01:55
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3Â¥2011-11-06 17:37:47
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meveny

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4Â¥2011-11-06 19:48:41
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