數學在工作上的實際應用? - 工程師
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By Barb Cronin
at 2019-03-02T01:50
at 2019-03-02T01:50
Table of Contents
※ 引述《qmqmqm ()》之銘言:
: 從簡單的開始就好
: 代數, 排列組合, 費氏定理, 證明, 幾何, 三角, 根號, 微積分, 無窮
: 各位真的在分析決策工作上有實際應用到這些嗎?
: 還是用著人家弄好的GUI操作講故事, 最後看官位決定?
: 又, 證明這件事個人覺得很實用, 但有多少人適用這種推倒演繹概念進行討論
: 而不是講話大聲, 或至少來個貝氏的概念, 而不是以口水批鬥桶人來引導決策方向?
: 想探知真正用科學方式做事的比例與情況~
數學....工作十年來,印象用比較深刻的一次
那是我剛退伍進第一間公司的時候,公司做螢幕校正器
就是進來一塊面板組裝好後或是使用一段時間後,表面上看起來都白色的畫面
實際上每個角落、區塊跟中間的亮度是不一樣的
所以要校正,把一塊 1080p 的面板用大概 8x8 像素去拆成二維陣列
在每個陣列方塊內填入補償值,讓 FPGA 控制每一小區域的亮度跟中間一樣
問題來了,一個感測鏡頭把每塊 8x8 都量測的話要測三萬次,不可能這麼做..
還好亮度的趨勢是連續的,如果中間亮、左上角暗會由中間到左上角遞減
不會中間亮、左上角普通亮但左上區塊中間這段超暗或超亮
因此,流程上就可以量四個角落跟中間,再用數學計算,只要感測五次即可
1.先量完四個角跟中間,再用三角函數算出上、下、左、右水平位置的值
2.用內插法把中間到四個角落以及四個角落之間每個區塊亮度補償算出來
當時我也不知道正確做法是什麼,用這方法寫了校正演算法後丟給工廠試
結果工廠覺得 OK 就用了....現在還是覺得有點對不起螢幕買家
--
: 從簡單的開始就好
: 代數, 排列組合, 費氏定理, 證明, 幾何, 三角, 根號, 微積分, 無窮
: 各位真的在分析決策工作上有實際應用到這些嗎?
: 還是用著人家弄好的GUI操作講故事, 最後看官位決定?
: 又, 證明這件事個人覺得很實用, 但有多少人適用這種推倒演繹概念進行討論
: 而不是講話大聲, 或至少來個貝氏的概念, 而不是以口水批鬥桶人來引導決策方向?
: 想探知真正用科學方式做事的比例與情況~
數學....工作十年來,印象用比較深刻的一次
那是我剛退伍進第一間公司的時候,公司做螢幕校正器
就是進來一塊面板組裝好後或是使用一段時間後,表面上看起來都白色的畫面
實際上每個角落、區塊跟中間的亮度是不一樣的
所以要校正,把一塊 1080p 的面板用大概 8x8 像素去拆成二維陣列
在每個陣列方塊內填入補償值,讓 FPGA 控制每一小區域的亮度跟中間一樣
問題來了,一個感測鏡頭把每塊 8x8 都量測的話要測三萬次,不可能這麼做..
還好亮度的趨勢是連續的,如果中間亮、左上角暗會由中間到左上角遞減
不會中間亮、左上角普通亮但左上區塊中間這段超暗或超亮
因此,流程上就可以量四個角落跟中間,再用數學計算,只要感測五次即可
1.先量完四個角跟中間,再用三角函數算出上、下、左、右水平位置的值
2.用內插法把中間到四個角落以及四個角落之間每個區塊亮度補償算出來
當時我也不知道正確做法是什麼,用這方法寫了校正演算法後丟給工廠試
結果工廠覺得 OK 就用了....現在還是覺得有點對不起螢幕買家
--
Tags:
工程師
All Comments
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By Jessica
at 2019-03-04T12:10
at 2019-03-04T12:10
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By Kama
at 2019-03-06T16:28
at 2019-03-06T16:28
外面八點到中央點的連線再各取一次中點 組共十七個點 量十
七次就可以了
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By Ivy
at 2019-03-11T07:12
at 2019-03-11T07:12
中央一點內差算出來差不多 最後還是變成量五點
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By Hazel
at 2019-03-13T17:16
at 2019-03-13T17:16
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By Margaret
at 2019-03-17T02:26
at 2019-03-17T02:26
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By Andy
at 2019-03-19T00:48
at 2019-03-19T00:48
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By Una
at 2019-03-20T03:09
at 2019-03-20T03:09
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By John
at 2019-03-22T22:10
at 2019-03-22T22:10
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By Cara
at 2019-03-24T07:16
at 2019-03-24T07:16
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By Ina
at 2019-03-25T22:11
at 2019-03-25T22:11
不一定要用到三角函數 就是內插的觀念而已
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By Annie
at 2019-03-30T14:10
at 2019-03-30T14:10
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By Daniel
at 2019-04-03T02:19
at 2019-04-03T02:19
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By Victoria
at 2019-04-04T10:36
at 2019-04-04T10:36
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By James
at 2019-04-04T12:42
at 2019-04-04T12:42
啦他國中畢業就被抓去關了沒唸過書啦 不過他說這個他會
用猜的 就猜中間的值是兩邊的一半就好 我說這就是內插
法的觀念啊你還說你沒唸過書 他說你當我是白癡啊 誰不
知道中午比較熱晚上比較涼 那傍晚當然不冷不熱啊 這是
常識啊幹你老師勒
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By Jessica
at 2019-04-06T14:56
at 2019-04-06T14:56
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By Oscar
at 2019-04-10T07:57
at 2019-04-10T07:57
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By Quintina
at 2019-04-12T17:34
at 2019-04-12T17:34
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By Valerie
at 2019-04-14T12:26
at 2019-04-14T12:26
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By Joe
at 2019-04-16T13:01
at 2019-04-16T13:01
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By Skylar DavisLinda
at 2019-04-20T02:28
at 2019-04-20T02:28
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By Yuri
at 2019-04-24T19:19
at 2019-04-24T19:19
這個例子就是線性內插 連小明都知道怎麼解
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By Dorothy
at 2019-04-29T15:26
at 2019-04-29T15:26
數學大師的出來講說可以用什麼高深的數學手法來處理
有一百個數學模型來擬合出更好的結果 然後說數學好棒
棒 我也知道數學好棒棒啦 但是可不可以舉一個真的非用
到數學不可的例子啊 殺雞他媽的用牛刀耶 這個例子完全
沒看到數學好用在哪裡
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By Madame
at 2019-04-29T18:07
at 2019-04-29T18:07
比小明用猜的方法好多少
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By Megan
at 2019-04-30T04:30
at 2019-04-30T04:30
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By Leila
at 2019-05-04T06:19
at 2019-05-04T06:19
陸月球看看哦 啊就這篇這個例子就是明擺著著只用到國
中數學 還是很直覺的解法 然後用這個例子來說數學好重
要 你他媽的當別人是白癡嗎
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By Agnes
at 2019-05-08T17:25
at 2019-05-08T17:25
全都是大學程度的東西啊 你他媽的以為這邊只有你一個
唸過大學嗎
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By Lauren
at 2019-05-11T00:00
at 2019-05-11T00:00
自己講的東西太專業了別人看不懂無法插嘴
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By Rebecca
at 2019-05-11T14:02
at 2019-05-11T14:02
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By Christine
at 2019-05-11T16:30
at 2019-05-11T16:30
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By Genevieve
at 2019-05-16T07:16
at 2019-05-16T07:16
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By Leila
at 2019-05-20T14:56
at 2019-05-20T14:56
看到別人用這麼簡單的方法解出來在嘴砲而已
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By Daniel
at 2019-05-22T16:56
at 2019-05-22T16:56
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By Poppy
at 2019-05-23T15:42
at 2019-05-23T15:42
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By Edwina
at 2019-05-28T13:10
at 2019-05-28T13:10
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By Jessica
at 2019-05-31T02:52
at 2019-05-31T02:52
什麼……
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By Wallis
at 2019-06-04T19:20
at 2019-06-04T19:20
不過也很寫實,工程上很少用到真正的數學
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By Jessica
at 2019-06-05T10:42
at 2019-06-05T10:42
不可以幫忙回答一下
幹這麼多幹話 我只看到這篇用的方法就是工廠端常用的
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By Quanna
at 2019-06-06T19:22
at 2019-06-06T19:22
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By Kristin
at 2019-06-10T07:09
at 2019-06-10T07:09
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By Margaret
at 2019-06-11T22:00
at 2019-06-11T22:00
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By Damian
at 2019-06-12T13:19
at 2019-06-12T13:19
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By Hazel
at 2019-06-17T01:55
at 2019-06-17T01:55
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By Quanna
at 2019-06-22T01:47
at 2019-06-22T01:47
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By Tristan Cohan
at 2019-06-25T22:40
at 2019-06-25T22:40
幹話一堆 講的好像自己是數學大師一樣 一堆跳樑小丑
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By Xanthe
at 2019-06-30T14:34
at 2019-06-30T14:34
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By Sarah
at 2019-07-05T00:53
at 2019-07-05T00:53
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By Necoo
at 2019-07-07T09:28
at 2019-07-07T09:28
天份
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By Ina
at 2019-07-09T17:51
at 2019-07-09T17:51
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By Olga
at 2019-07-12T00:27
at 2019-07-12T00:27
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By Bethany
at 2019-07-15T04:58
at 2019-07-15T04:58
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By Irma
at 2019-07-19T02:27
at 2019-07-19T02:27
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By Daph Bay
at 2019-07-23T02:56
at 2019-07-23T02:56
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By Elvira
at 2019-07-23T09:01
at 2019-07-23T09:01
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By Dora
at 2019-07-26T11:33
at 2019-07-26T11:33
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By Skylar DavisLinda
at 2019-07-29T19:38
at 2019-07-29T19:38
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By Dorothy
at 2019-08-02T10:47
at 2019-08-02T10:47
不用在那邊裝逼啦
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By David
at 2019-08-02T22:25
at 2019-08-02T22:25
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By Caitlin
at 2019-08-04T22:15
at 2019-08-04T22:15
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By Callum
at 2019-08-05T21:10
at 2019-08-05T21:10
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By Caitlin
at 2019-08-08T15:18
at 2019-08-08T15:18
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By Adele
at 2019-08-09T18:55
at 2019-08-09T18:55
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By Ursula
at 2019-08-14T16:16
at 2019-08-14T16:16
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By Hardy
at 2019-08-15T07:43
at 2019-08-15T07:43

By Susan
at 2019-08-15T16:20
at 2019-08-15T16:20

By Mia
at 2019-08-20T13:13
at 2019-08-20T13:13
輪不到你來嗆蝦啦
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By Joseph
at 2019-08-21T20:34
at 2019-08-21T20:34
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By Dinah
at 2019-08-25T16:15
at 2019-08-25T16:15
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By Edward Lewis
at 2019-08-30T01:21
at 2019-08-30T01:21
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By Iris
at 2019-09-02T17:39
at 2019-09-02T17:39
大家都修過嘛 沒人當自己是專家啊 出社會還不默默工作
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By Charlotte
at 2019-09-05T02:20
at 2019-09-05T02:20
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By Eden
at 2019-09-06T10:36
at 2019-09-06T10:36
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By Damian
at 2019-09-08T20:43
at 2019-09-08T20:43
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By Linda
at 2019-09-10T18:37
at 2019-09-10T18:37
PTT上一堆這種屁孩 我他的的還不崩潰
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By Edward Lewis
at 2019-09-13T20:58
at 2019-09-13T20:58
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By Madame
at 2019-09-14T21:20
at 2019-09-14T21:20
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By Bethany
at 2019-09-18T01:07
at 2019-09-18T01:07
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By Madame
at 2019-09-20T23:45
at 2019-09-20T23:45

By Bethany
at 2019-09-21T21:05
at 2019-09-21T21:05

By Christine
at 2019-09-22T14:46
at 2019-09-22T14:46

By Linda
at 2019-09-23T02:11
at 2019-09-23T02:11

By Skylar DavisLinda
at 2019-09-26T13:26
at 2019-09-26T13:26
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By Jacob
at 2019-09-29T11:08
at 2019-09-29T11:08
而且FDTD原理也只是把PDE離散化,稱不上甚麼數學...
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By Isla
at 2019-10-02T09:43
at 2019-10-02T09:43
工程師平常用的那些你說是數學真的會被笑死
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By Heather
at 2019-10-06T20:01
at 2019-10-06T20:01
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By Steve
at 2019-10-10T05:01
at 2019-10-10T05:01

By Thomas
at 2019-10-14T19:08
at 2019-10-14T19:08
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By Valerie
at 2019-10-16T02:09
at 2019-10-16T02:09
也太狹隘。不過商用軟體確實強但是要錢而且頗貴就是
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By Selena
at 2019-10-18T15:22
at 2019-10-18T15:22
隨便一個碩畢都屌打他,原來是眼紅我們薪水高幫QQ
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By Caroline
at 2019-10-19T21:52
at 2019-10-19T21:52

By Skylar DavisLinda
at 2019-10-23T11:17
at 2019-10-23T11:17
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By Hazel
at 2019-10-28T05:14
at 2019-10-28T05:14
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By Queena
at 2019-11-01T09:58
at 2019-11-01T09:58
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By Elma
at 2019-11-02T20:08
at 2019-11-02T20:08

By Anonymous
at 2019-11-06T18:41
at 2019-11-06T18:41
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By Frederic
at 2019-11-10T15:18
at 2019-11-10T15:18
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By Sarah
at 2019-11-10T21:54
at 2019-11-10T21:54
他除了情緒激動外講得大致不錯...不知道你要他解甚麼
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By Necoo
at 2019-11-12T02:53
at 2019-11-12T02:53
本來就用不到甚麼數學

By Emma
at 2019-11-12T09:42
at 2019-11-12T09:42
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By Joseph
at 2019-11-12T13:28
at 2019-11-12T13:28
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By Rosalind
at 2019-11-15T18:41
at 2019-11-15T18:41
數學在工作而已」

By William
at 2019-11-17T19:38
at 2019-11-17T19:38

By Zenobia
at 2019-11-22T03:12
at 2019-11-22T03:12

By Margaret
at 2019-11-22T11:54
at 2019-11-22T11:54

By Hardy
at 2019-11-27T03:58
at 2019-11-27T03:58
我不知道崩潰哥是在崩潰幾點的
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By Edward Lewis
at 2019-11-28T04:57
at 2019-11-28T04:57

By Jake
at 2019-11-30T21:06
at 2019-11-30T21:06
應該是near/far field吧...
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By Wallis
at 2019-12-01T22:11
at 2019-12-01T22:11
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By Leila
at 2019-12-04T04:22
at 2019-12-04T04:22

By Zora
at 2019-12-06T21:53
at 2019-12-06T21:53
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at 2019-03-01T13:47
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