推 arthurduh1: @@/ 140.109.73.207 07/17 23:56
→ ben020516: @@/111.251.223.187 07/17 23:56
→ alex22721373: 是你我就放心了 36.237.124.113 07/17 23:56
→ alex22721373: ==arthurduh1: @@/ 36.237.124.113 07/17 23:56
→ arthurduh1: 咦XD 140.109.73.207 07/17 23:57
→ aa88650233: 可羅 114.32.151.114 07/17 23:58
→ alex22721373: =====可以開始了 36.237.124.113 07/17 23:58
→ arthurduh1: -------------------------------數矢 140.109.73.207 07/17 23:58
→ alex22721373: 我放心過頭了 36.237.124.113 07/17 23:58
→ arthurduh1: 完了XD 140.109.73.207 07/17 23:59
推 inhumanq: 箭頭123.193.249.122 07/17 23:59
推 ben020516: 完了我連這是啥都看不懂111.251.223.187 07/17 23:59
推 PiggyHsuan: 哈哈...118.168.126.103 07/17 23:59
推 acmpomelo: 箭靶 1.172.224.74 07/17 23:59
→ arthurduh1: -------------------------------數學 140.109.73.207 07/17 23:59
→ acmpomelo: 向量 1.172.224.74 07/18 00:00
→ ben020516: 你是打錯字嗎XDDDD111.251.223.187 07/18 00:00
→ arthurduh1: 想把兩個提示塞在一個的結果www 140.109.73.207 07/18 00:00
推 susaku: 座標 36.227.178.7 07/18 00:00
→ alex22721373: ==acmpomelo: 向量 36.237.124.113 07/18 00:00
→ digimongo: 內積222.149.215.120 07/18 00:00
→ acmpomelo: 第一個真的看不懂XD 1.172.224.74 07/18 00:00
→ alex22721373: 數字跟箭頭 36.237.124.113 07/18 00:01
→ acmpomelo: 收到乾蝦 1.172.224.74 07/18 00:01
→ arthurduh1: 收到感謝~ 140.109.73.207 07/18 00:01
推 lweis: 一方 114.42.204.120 07/18 00:03
→ lweis: 通行 114.42.204.120 07/18 00:03
推 arthurduh1: 第二個提示我還真的有考慮一方www 140.109.73.207 07/18 00:05
→ acmpomelo: www 1.172.224.74 07/18 00:06
推 arthurduh1: 內積當提示好像不錯 140.109.73.207 07/18 00:09
→ alex22721373: 外積比較好 36.237.124.113 07/18 00:10
→ alex22721373: 內積出來是純量 36.237.124.113 07/18 00:10