作者查詢 / LPH66
作者 LPH66 在 PTT [ Math ] 看板的留言(推文), 共8895則
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2F推: 方程有無數個沒錯, 但如果限定 y 係數則唯一07/02 00:39
3F→: 我的意思是 y=3x+8 跟 2y=6x+16 跟 3y=9x+24 都一樣07/02 00:41
4F→: 那要解方程的話總是會調整 y 係數, 那就只是在07/02 00:41
5F→: 這許多個方程中選出所要的 y 係數的那一個07/02 00:42
6F→: 你朋友就只是簡單的對兩條直線都選 1*y 的那個而已07/02 00:42
5F推: 然後我簡單估了一下, 這個整數有兩千出頭位數06/27 14:57
6F→: 然後如果硬要找一些關係式的話會變成反解二階遞迴06/27 14:59
7F→: (因為這表達式就是二階遞迴的通式型)06/27 14:59
8F→: 所以就這樣吧06/27 14:59
4F推: 那 5/14 2/14 什麼的是給定機率還是你舉例的而已?06/24 10:25
5F→: 真的機率就是那樣的話那就是這篇的推演06/24 10:25
6F推: 你得先搞清楚你這兩個加上去的機率怎麼決定再說06/19 09:58
7F→: 而這光看你的敘述你我都無從猜測到底是怎麼算的06/19 09:59
8F→: 只能像上面推文說的去問他們工程師怎麼寫的06/19 09:59
9F→: 你去問看看有沒有辦法問得到吧06/19 09:59
10F→: 畢竟你截圖裡的這種寫法本身就是矛盾的了06/19 10:00
7F推: 第二題的類題 #1VWUTtUF06/18 15:17
2F推: 這個 a(1,n) 數列長這樣 http://oeis.org/A00752606/16 00:58
2F推: 提示: 考慮甲乙我全都要的狀況06/14 14:34
1F推: 消不掉物重就讓它沒有影響: 力矩支點設在物品上06/14 13:11
2F→: 這樣桿重和浮力的力矩平衡就容易解答案了06/14 13:12
3F→: 物重的實際值最後會變成整個系統靜力平衡的負重06/14 13:13