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Shirley89

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10Â¥: Originally posted by ybkooo at 2015-05-13 14:41:53
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Shirley89

Òø³æ (СÓÐÃûÆø)

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10Â¥: Originally posted by ybkooo at 2015-05-13 14:41:53
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Shirley89

Òø³æ (СÓÐÃûÆø)

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10Â¥: Originally posted by ybkooo at 2015-05-13 14:41:53
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12Â¥: Originally posted by Shirley89 at 2015-05-13 19:01:59
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Shirley89

Òø³æ (СÓÐÃûÆø)

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6Â¥: Originally posted by ybkooo at 2015-05-13 13:56:57
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Shirley89

Òø³æ (СÓÐÃûÆø)

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3Â¥: Originally posted by ÔÂÖ»À¶ at 2015-05-13 13:24:07
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dx/dt=a*(1-x)^2-b*(x/2)^2
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t = -0.2e1 * ((a * b) ^ (-0.1e1 / 0.2e1)) * atanh(((2 * (4 * a - b) * x - 8 * a)  ...

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Parameters a,b;
Variable t,x ;
Function t=ln((2*(a-b/4)*x-2*a-sqrt(a*b))/(2*(a-b/4)*x-2*a+sqrt(a*b)))/sqrt(a*b);
DATA;
0        0.25249
1        0.57883
2        0.66356
3        0.68492
6        0.70908
9        0.71809
12        0.73018
15        0.74978
18        0.76529
21        0.77252
31        0.79128
41        0.80613
51        0.81314
61        0.826
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a                  0.238589415416504
b                  0.0418260852240103
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a            0.956778
b            0.36338
16Â¥2015-05-15 15:55:09
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16Â¥: Originally posted by Shirley89 at 2015-05-15 15:55:09
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Parameters a,b;
Variable t,x ;
Function t=ln((2*(a-b/4)*x-2*a-sqrt(a*b))/(2*(a-b ...

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Shirley89

Òø³æ (СÓÐÃûÆø)

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17Â¥: Originally posted by ÔÂÖ»À¶ at 2015-05-15 16:03:41
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Shirley89

Òø³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
17Â¥: Originally posted by ÔÂÖ»À¶ at 2015-05-15 16:03:41
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»ý·ÖÖ®ºóµÄR2ÊÇ£ºÏà¹ØÏµÊý֮ƽ·½(R^2): 0.882218364808292
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19Â¥2015-05-15 16:29:58
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19Â¥: Originally posted by Shirley89 at 2015-05-15 16:29:58
»ý·ÖÖ®ºóµÄR2ÊÇ£ºÏà¹ØÏµÊý֮ƽ·½(R^2): 0.882218364808292
΢·ÖµÄÊÇ 0.82935
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