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作者 deathcustom 在 PTT [ Math ] 看板的留言(推文), 共104則
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全部Patent2229Electronics1455Gossiping1069Christianity999Stock657nobunyaga486Koei413WarringState404GO167ShowOff145Militarylife133NY-Yankees127comm_and_RF124points120Math104CMWang71feminine_sex65mud_jy55sex41AdvEduUK30StarTrek29Catholic24HCKuo23creditcard20tax20Sijhih19movie18PhD18graduate17home-sale16MLB16AllTogether15Buddhism15MLBGAME15Tsao15consumer14WOW14Grad-ProbAsk13HK-drama13Biology12Immigration12JinYong12medstudent12Atheism11Aviation11mud11biker10Insurance10media-chaos9Salary9SD-GundamOL9HomeTeach8NTUEESOCCER8DSLR7MJ7Tech_Job7C_Chat6CLHu6Military6RedSox6StupidClown6EmailYang5PttLaw5WorldCup5A-Rod4Baseball4HK-movie4JapanHistory4joke4JSonline4Learn_Buddha4Programming4specialman4TigerBlue4AntiVirus3Dynasty3Employee3HatePolitics3KOU3MacGyver3marriage3NTUEE107HW3PCSH91_3053PushDoll3SWORD3AC_In2Acad-Affairs2AndyLau2Angels2ASHS-93-li2BabyMother2Beauty2Boy-Girl2CareerPlan2cat2CCRomance2Cga2CHU-GO2cksh80th3072CrossStrait2EatToDie2FLAT_CLUB2KS93-3202KUAS2LTK2Master_D2Navy2NCCU_SEED2NCUT2NSYSU_EE95-12NTHU_COM6072NTU2NTUCHE-95-HW2NTUEE1072NTUEE1082NTUEE1122NUK_AC982Old-Games2politics2PublicServan2ScienceNote2SHORTY2story2TFSHS69th3092Theater2Tobacco2Wanted2AngelPray1ASHS-95RN1ask1BaseballSYS1BigPeitou1CATCH1ck47th3201ck53rd3031cookcomic1CSMU-MED971CSMU-MTBB1CTSH923011CYCUEL95A1Doraemon1DragonNest1DummyHistory1FCU-INS93B1FJU1FJU-ACCR941FJULaw-Team1GAMEMUSIC1HCHS933141ICDESIGN1Indians1JackLee1Jacky1japanavgirls1Key_Mou_Pad1Kids_Sucker1KMU_CIA1KS92-3161KS98-3021L_LifeJob1L_TalkandCha1LCD1LifeSci_961LinkinPark1lths-88-M1MATLAB1MdnCNhistory1MenTalk1midwaywisdom1MLSH493121Nationals1NCCU04_TUR1NCKU-physiol1NCKU_CSIE931NDHU-phy981NIU-ECE92b1NTHU-EE-CAPT1NTU-EM921NTUGO1PH-961photo1Physics1PttLifeLaw1Q_ary1QueerHabit1SOFTSTAR1Suckcomic1TBDS1Teacher1TKU_EE_92C1TuTsau1Virgo1YP92-3041YP92-3121<< 收起看板(194)
10F推: 1. 計算四交點ABCD 2. 計算AB長 3. 計算C到AB距離11/14 14:58
11F→: 4. 平行四邊形面積=底*高 #11/14 14:59
1F推: 我建議你到comm_and_RF板求問會比較專門11/11 09:59
2F推: 就做信號的人來說,你應該對雜訊跟干擾很熟才對11/11 10:13
3F→: 問題是在一個causal system中,你永遠沒辦法預知11/11 10:13
4F→: 雜訊跟干擾,然後你假設一旦錯了就掰惹11/11 10:14
2F推: 題目的語意其實是有問題的11/04 15:26
3F→: Q: if the first is B, how possible the 2nd is O?11/04 15:27
4F→: 但是他的詳解跟提供的選項其實是"頭兩人依序為BO"11/04 15:28
2F→: RHS/LHS > n/2 or sqrt(n/2) 當N趨近inf,n趨近inf09/13 15:45
3F→: 因此其上限漸進線(O)的比例趨近inf09/13 15:45
12F推: 條件1跟條件2互斥,不存在這個公式07/28 10:59
2F推: 公式解z = (1/2)(6-2i+sqrt(28-24i-68+24i))07/21 17:32
4F推: 對XDDD所以z = 3-i+3i = 3+2i, 答案會是9+407/22 11:22
3F→: 1. 解兩式交點(3,4a)07/08 16:38
4F→: 原方程以點斜式標出(0,-1) (0,1)兩點07/08 16:38
5F→: 3. 以(0,1)過(2,3)與x=3交點C1與(0,-1)做成三角形07/08 16:40
6F→: 4. 以(0,-1)過(2,3)與x=3交點C2與(0,1)做成三角形07/08 16:40
7F→: 5. C1與C2之間的點與(0,-1)(0,1)構成的三角形均包括07/08 16:41
8F→: (2,3)07/08 16:41
9F→: 6. 此時去看C1與C2的y值應分別為6跟407/08 16:42
10F→: 7. 因此4/4 < a < 6/407/08 16:42
5F推: 另三位為2x-1,2y-1,2z-106/22 15:53
10F→: 1<=x,y,x<=506/22 15:54
2F→: 那個式子太複雜惹XDDD06/07 15:22
5F→: 不是啊,應該是x-0.5x^2 = 0.0046, x~0.004606/08 15:01
7F→: 事實證明,差異這麼小的直接當作ln(1+x) = x就好XDD06/08 15:08
9F→: log(Y)=0.4, log(2.5)=log(10/4)06/09 06:20
10F→: =1-2*0.3010=0.39806/09 06:22
11F→: 利用log函數單調遞增的特性知到06/09 06:23
12F→: Y>2.506/09 06:23