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[求助]
iteration method for density equations_help_me 已有2人參與
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hi there; I need some help with the following formulas In the interaction picture. Then This equation can be iterated. and it is I can understand the eq.(2), but not the eq. (3). Is anybody know how to get the equation (3). and why do we want to do such calculation? |
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mshwangg
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9樓2014-06-28 00:29:21
mshwangg
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【答案】應(yīng)助回帖
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感謝參與，應(yīng)助指數(shù) +1
十點鐘的咖啡: 金幣+1 2014-06-27 14:50:51
感謝參與，應(yīng)助指數(shù) +1
十點鐘的咖啡: 金幣+1 2014-06-27 14:50:51
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What your aim is to solve equation 1. However, the statement in eq.2 and eq3 is only the method using Euler's formula. The precision of this method is the order of h^3 (h is the step). In many cases, the h^3 precision is not sufficient for meeting your expectation. In my opinion, it's better to use the Runge-Kutta method or use some software such as Matlab or Mathematica |
2樓2014-06-27 14:27:15
3樓2014-06-27 14:48:47
4樓2014-06-27 15:00:09
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