作者查詢 / jetzake
作者 jetzake 在 PTT [ Math ] 看板的留言(推文), 共525則
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7F→:...現在是考數學還是考閱讀測驗? 越來越無聊了....10/02 02:20
1F推:數列這東西 只要後面還沒寫完 要怎麼解釋都可以的...10/01 00:58
2F→:除非有特別的意義 不然這類題目都是一整個不想寫10/01 00:58
1F推:你要的是PX的長度還是PQX的面積??09/30 16:39
2F推:http://www.funlearn.tw/viewthread.php?tid=1175110/02 02:30
3F→:這算老梗了其實..10/02 02:30
6F推:其實P不管在哪都對... 那個圓只是障眼法而已09/29 14:47
7F→:...好像也不是... = =A 一下子昏頭了..09/29 14:50
4F→:這好像是很久以前歐洲某雜誌的有獎徵答一類題目09/27 00:18
5F→:嚴格來說算是數論的範圍09/27 00:19
2F推:k=1也不會錯啊 就一路=0到底而已...09/26 20:34
6F→:你其實把橢圓當作是圓的變形擴張會比較快09/26 20:36
7F→:二維平面上的伸縮變形 可以解決蠻多面積問題的09/26 20:37
8F→:喔對 如果有興趣的話 這類問題在射影幾何裡面更好玩09/26 20:40
9F→:大多數建築設計的視覺效果 在這個領域都有討論到喔09/26 20:41
5F→:其實是更懷舊的GSP... 現在都沒人玩這個了嗎?? = =A09/26 23:23
3F推:...看不太懂? 長方形對角線外加兩個切兩邊的圓弧??09/26 04:09
4F→:長方形的長寬是92.78和46.6、圓的半徑是15.64??09/26 04:10
6F推:用繪圖軟體拉一下 大約是89.8左右...09/26 19:42
7F→:畢竟數字太醜 找不太到漂亮的特殊角或直角三角形計算09/26 19:44
8F→:如果到最後還是得查表 不如直接用電腦繪圖了事..= =A09/26 19:45
7F推:姆... 這其實要討論複數系統擴展根號意義的部份啦...09/26 01:16
8F→:有人主張可以寫成原PO那樣簡化符號09/26 01:17
9F→:有人比較堅持必須寫作"X的n次方根"這樣09/26 01:17
10F→:如果要說"根號必正" 那√-1這東西本身就有問題了09/26 01:19
13F→:i這東西本來就不屬於實數系 無所謂正負嘛..09/26 04:00
14F→:說出"√-1代表i"不就是承認在擴大根號這個符號的解釋09/26 04:01