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Zixuan Li


3 2019 年以降の合計貢献数

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質問


why there is a small error in these simple calculations?
3e-4-3*10^-4 sum=0; for i=1:1000 sum=sum+0.001; end sum_output=sum this gives an answer of -5.4210108...

5ヶ月 前 | 1 件の回答 | 0

1

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質問


why my adaptive RK4 code cannot be as efficient as ode45?
I wrote a code of adaptive RK4 method, the tolerance can be changed, and the idea is based on wikipedia (compare the difference ...

6ヶ月 前 | 1 件の回答 | 0

1

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質問


what's the difference in accuracy between solving a stiff problem by ode15s and ode45?
It seems ode45 can also solve a stiff problem, but takes more time ( there are more data on finer grid as well, but the curve is...

6ヶ月 前 | 2 件の回答 | 0

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