[
    {
        "id":  496635,
        "publisher":  474501,
        "username":  "zzzZZZnTellurium",
        "avatar":  "https://img-avatar.eduzhixin.com/avatar/07605a7663ad94eea397975f81dbb965/s.jpg?x-oss-process=style/avatar\u0026t=202609122212",
        "content":  "\u003cp\u003e话说我一直有一个疑惑\u003c/p\u003e\u003cp\u003e就是假设有十个两位小数加起来。它的不确定度会使得小数点后第二位无意义，那么这时候是保留一位小数呢，还是两位小数？\u003c/p\u003e\u003cp\u003e按规则似乎 (?) 是后者，但是按直观逻辑正常脑回路逻辑是前者\u003c/p\u003e",
        "thumb_up_num":  3,
        "comment_num":  2,
        "created_at":  "1779448797",
        "has_thumb_up":  0,
        "comment_list":  [
                             {
                                 "id":  769133,
                                 "publisher":  637565,
                                 "username":  "白芥",
                                 "avatar":  "https://img-avatar.eduzhixin.com/avatar/da074d0d31b0f1366b5396b33d55f973/s.jpg?x-oss-process=style/avatar\u0026t=202609122212",
                                 "content":  "\u003cp\u003eai说这里还藏了一个不准确度的概念，要计算说明...？\u003c/p\u003e",
                                 "thumb_up_num":  2,
                                 "did":  67323,
                                 "created_at":  "1779458883",
                                 "rid":  496635,
                                 "reply_uid":  0,
                                 "reply_uname":  "",
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                             {
                                 "id":  769134,
                                 "publisher":  474501,
                                 "username":  "zzzZZZnTellurium",
                                 "avatar":  "https://img-avatar.eduzhixin.com/avatar/07605a7663ad94eea397975f81dbb965/s.jpg?x-oss-process=style/avatar\u0026t=202609122212",
                                 "content":  "呃... 所以说是哪个？",
                                 "thumb_up_num":  1,
                                 "did":  67323,
                                 "created_at":  "1779458904",
                                 "rid":  496635,
                                 "reply_uid":  637565,
                                 "reply_uname":  "白芥",
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                                 "avatar_dress_up_id":  0,
                                 "user_code":  "UID_4238e3bd75a45632aaf000062e3e2f38"
                             }
                         ],
        "avatar_dress_up_url":  "",
        "avatar_dress_up_name":  "",
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        "user_code":  "UID_4238e3bd75a45632aaf000062e3e2f38"
    },
    {
        "id":  496695,
        "publisher":  474501,
        "username":  "zzzZZZnTellurium",
        "avatar":  "https://img-avatar.eduzhixin.com/avatar/07605a7663ad94eea397975f81dbb965/s.jpg?x-oss-process=style/avatar\u0026t=202609122212",
        "content":  "\u003cp\u003e我感觉这种东西有的时候就很矛盾\u003c/p\u003e\u003cp\u003e比如 12.01*6+1.008*5+14.01+16.00*2，这玩意它可能会保留两位小数。但这不确定度明明已经大到要砍掉最后一位的程度了。\u003c/p\u003e",
        "thumb_up_num":  4,
        "comment_num":  2,
        "created_at":  "1779459022",
        "has_thumb_up":  0,
        "comment_list":  [
                             {
                                 "id":  769141,
                                 "publisher":  637565,
                                 "username":  "白芥",
                                 "avatar":  "https://img-avatar.eduzhixin.com/avatar/da074d0d31b0f1366b5396b33d55f973/s.jpg?x-oss-process=style/avatar\u0026t=202609122212",
                                 "content":  "\u003cp\u003e不确定度在乘法后会放大：\u003c/p\u003e\u003cp\u003e1. \\(12.01 \\times 6\\)：\u0026nbsp;\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u0026nbsp; \u0026nbsp;不确定度 = \\(6 \\times 0.005 = 0.03\\) → 精确到 ±0.03\u003c/p\u003e\u003cp\u003e2. \\(1.008 \\times 5\\)：\u0026nbsp;\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u0026nbsp; \u0026nbsp;不确定度 = \\(5 \\times 0.0005 = 0.0025\\) → ±0.0025\u003c/p\u003e\u003cp\u003e3. \\(14.01\\)：\u0026nbsp;\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u0026nbsp; \u0026nbsp;不确定度 = ±0.005\u003c/p\u003e\u003cp\u003e4. \\(16.00 \\times 2\\)：\u0026nbsp;\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u0026nbsp;不确定度 = \\(2 \\times 0.005 = 0.01\\) → ±0.01\u003c/p\u003e\u003cp\u003e总不确定度（绝对值相加）：\u003c/p\u003e\u003cp\u003e\\[\\Delta S = 0.03 + 0.0025 + 0.005 + 0.01 = 0.0475 \\approx 0.05\\]\u003c/p\u003e\u003cp\u003e所以总和的不确定度约为 **±0.05**\u003c/p\u003e\u003cp\u003e这意味着：**结果只能保证到小数点后第一位**！\u003c/p\u003e\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\u003cp\u003e这两道都只能保留一位，但是它这个0.005是默认的吗，没有来源呐\u003c/p\u003e",
                                 "thumb_up_num":  2,
                                 "did":  67323,
                                 "created_at":  "1779459371",
                                 "rid":  496695,
                                 "reply_uid":  0,
                                 "reply_uname":  "",
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                             {
                                 "id":  769145,
                                 "publisher":  474501,
                                 "username":  "zzzZZZnTellurium",
                                 "avatar":  "https://img-avatar.eduzhixin.com/avatar/07605a7663ad94eea397975f81dbb965/s.jpg?x-oss-process=style/avatar\u0026t=202609122212",
                                 "content":  "0.005 意思是，就比如 14.01 可能是 14.005 ~ 14.01499，即 ±0.005，不确定度就是 ± 多少的意思",
                                 "thumb_up_num":  1,
                                 "did":  67323,
                                 "created_at":  "1779459571",
                                 "rid":  496695,
                                 "reply_uid":  637565,
                                 "reply_uname":  "白芥",
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