{"topic":{"id":8142,"title":"物理模拟 2.2","slug":"topic","categoryId":56,"createdAt":"2023-12-21 09:39:29.395159","bumpedAt":"2023-12-22 02:17:08.441252","views":171,"postsCount":2,"highestPostNumber":2,"likeCount":0,"closed":true,"pinned":false,"pinnedGlobally":false,"pinnedAt":null,"pinnedUntil":null,"isBanner":false,"excerpt":"是我隐式欧拉法写错了还是 update 函数写错了，调用前向欧拉法的时候很正常，隐式欧拉法就自动把初速度归零，半隐式欧拉法跑的特别快","deletedAt":null,"isAnonymous":false,"category":{"id":56,"name":"计算机图形学","slug":"cg","color":"92278F"},"author":{"id":1554,"username":"JJBond","name":"弃之可惜","avatarUrl":null},"tags":[]},"posts":[{"id":19829,"postNumber":1,"raw":"[grid mode=\"tile\"]\n![1703151479292|690x178](/uploads/image/1d/06/1d060d3be7980ee6f782b47aa51cd0a49f09c066296f8b2a28ec2d0bcfaa1465.avif)\n![1703151499954|564x500](/uploads/image/9b/6d/9b6d046855e9e7c8fd8bcc57ccb1e27e591c2683b215e7d8d692123613b2a9ce.avif)\n[/grid]\n是我隐式欧拉法写错了还是 update 函数写错了，调用前向欧拉法的时候很正常，隐式欧拉法就自动把初速度归零，半隐式欧拉法跑的特别快","cooked":"

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\n $\"1703151499954\"$

是我隐式欧拉法写错了还是 update 函数写错了，调用前向欧拉法的时候很正常，隐式欧拉法就自动把初速度归零，半隐式欧拉法跑的特别快

\n","createdAt":"2023-12-21 09:39:29.472521","updatedAt":"2023-12-21 09:39:29.472521","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":64,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":1554,"username":"JJBond","name":"弃之可惜","avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":19921,"postNumber":2,"raw":"我试过把前向欧拉，半隐式欧拉，隐式欧拉三个函数的函数体换成隐式欧拉的函数体，只有前向欧拉能正确跑，也就是说另外两个函数不管里面写什么都不能正常跑，只有前向欧拉里面写的能正常跑","cooked":"

我试过把前向欧拉，半隐式欧拉，隐式欧拉三个函数的函数体换成隐式欧拉的函数体，只有前向欧拉能正确跑，也就是说另外两个函数不管里面写什么都不能正常跑，只有前向欧拉里面写的能正常跑

\n","createdAt":"2023-12-22 02:17:08.441252","updatedAt":"2023-12-22 02:17:08.441252","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":87,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":1554,"username":"JJBond","name":"弃之可惜","avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}}],"hasMore":false,"lastReadPostNumber":1,"hasUrlPostNumber":false}