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作者 phxcon 在 PTT [ Math ] 看板的留言(推文), 共67則
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[中學] 排列組合
[ Math ]7 留言, 推噓總分: +2
作者: doctortwo - 發表於 2019/09/21 16:20(6年前)
1Fphxcon: 第一個方法是錯的, 這樣算有重複相同的排列09/21 16:44
[中學]89北五專數學第29題等差數列與等比數列
[ Math ]2 留言, 推噓總分: +2
作者: ralftalent - 發表於 2019/06/16 19:58(6年前)
1Fphxcon: 把x,y繼續化簡06/16 20:08
高中 機率
[ Math ]14 留言, 推噓總分: +5
作者: ChenYM - 發表於 2016/07/15 13:42(9年前)
9Fphxcon: 推文的算法有誤,球與袋都要當不同物來算07/16 11:19
12Fphxcon: 你貼的照片兩個都錯,算機率時球都要當不同物07/16 20:18
[機統] 請問高一下機率,11個0、1組成的機率
[ Math ]3 留言, 推噓總分: +2
作者: danial - 發表於 2016/06/18 13:04(9年前)
2Fphxcon: 龍騰數亦優第27期-從組合意義來看一道競賽試題06/18 14:03
[中學] 圓錐曲線+費式數列
[ Math ]3 留言, 推噓總分: +1
作者: deardidi - 發表於 2016/06/02 18:50(9年前)
1Fphxcon: 最簡單的方法是把兩組座標代入標準式解聯立06/02 20:55
2Fphxcon: 這其實是佩爾方程式有關,跟二次曲線定義沒關06/02 20:58
[閒聊]有人可以出一個很難的題目 最後答案是87嗎
[ Math ]20 留言, 推噓總分: +10
作者: ss8901233 - 發表於 2016/05/15 18:58(9年前)
9Fphxcon: 何不用58705/15 21:51
[其他] 這樣的數據可以算標準差嗎?
[ Math ]23 留言, 推噓總分: +2
作者: gigi030507 - 發表於 2016/05/12 18:40(9年前)
2Fphxcon: 不行05/12 19:07
Re: [其他] 南二中104教甄數學題Q1
[ Math ]74 留言, 推噓總分: +21
作者: doa2 - 發表於 2015/04/27 13:06(10年前)
61Fphxcon: A講的第一句語意有問題05/07 12:01
70Fphxcon: 我想錯了...05/08 12:55
[中學] 一題國中幾何角度
[ Math ]10 留言, 推噓總分: +2
作者: oToToT - 發表於 2015/04/22 20:49(10年前)
7Fphxcon: 請問圖形是用什麼app畫的?04/23 19:10
[中學] 國中數學一題(幾何)求救
[ Math ]4 留言, 推噓總分: +3
作者: cktyler - 發表於 2014/11/21 17:40(11年前)
2Fphxcon: 有兩個四邊形是相似形,所以4:x=x:611/21 19:39