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hbghlyj Posted at 2022-1-21 07:08:13 |Read mode
Last edited by hbghlyj at 2024-2-1 21:11:00为了给这帖的第2题(炮弹能打到的范围)配图(以下都是取g = 9.8, V = 40进行计算)
作抛物线,使用二次Bezier曲线,先移动到起始点,作此点的切线与对称轴的交点,作为Q的第一组参数,然后Q的第二组参数是终点.

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爪机专用 Posted at 2022-1-21 19:45:47
回复 1# hbghlyj


这个是叫安全抛物线吧,我高中时也推过

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 Author| hbghlyj Posted at 2022-6-22 00:11:10
Last edited by hbghlyj at 2024-2-1 21:15:00发现问题了:转移了论坛以后,如果原帖勾选了HTML代码,而且被编辑过,那么帖子内容的开头会多出一行:
  1. [i=s] 本帖最后由 hbghlyj 于 2022-1-21 12:12 编辑 [/i]
Copy the Code

导致这一行与新的“编辑于”重叠.

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 Author| hbghlyj Posted at 2024-2-2 05:13:52

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2025-4-20 22:04 GMT+8

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