歐大亮 Ohda

4:48

One Rotation, Two Quaternions: Why q and −q?｜同一個旋轉，為什麼有兩個四元數？

歐大亮 Ohda

Shared 6 hours ago

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10:32

Vector Spaces & Subspaces: Do Addition and Scaling Stay Inside?

歐大亮 Ohda

Shared 8 hours ago

33 views

3:42

四元數合成｜先 A 後 B，為何寫 BA？｜Quaternion Rotation Composition

歐大亮 Ohda

Shared 14 hours ago

58 views

13:08

Without Loss of Generality: Meaning & Proof

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Shared 2 days ago

92 views

7:15

What Is a Quaternion? Four Numbers for 3D Rotation

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Shared 3 days ago

228 views

9:28

Transpose & Permutation Matrices | Roles vs. Order

歐大亮 Ohda

Shared 5 days ago

88 views

8:34

LU分解｜矩陣不變，為何不用重做消去？｜LU Factorization: Factor Once, Solve Again

歐大亮 Ohda

Shared 5 days ago

155 views

5:48

用消去法計算反矩陣｜右邊為何是答案？｜Matrix Inverse by Elimination

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Shared 6 days ago

153 views

5:21

線性方程式組與消去法｜為何不會改變解？｜Gaussian Elimination: Same Solutions

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Shared 6 days ago

92 views

4:18

Chió 降階法｜五階行列式怎麼縮到二階？｜Chió Condensation: 5×5 to 2×2

歐大亮 Ohda

Shared 6 days ago

96 views

3:09

全微分｜同一步，為什麼有兩種高度差？｜Total Differential: One Step, Two Height Changes

歐大亮 Ohda

Shared 1 week ago

145 views

5:44

反矩陣｜哪些變形能還原？｜Inverse Matrices: When Can You Undo a Transformation?

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Shared 1 week ago

81 views

5:50

矩陣的四個乘法｜同一個 AB 的四種觀點｜Four Views of Matrix Multiplication

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Shared 1 week ago

214 views

5:56

如何申請band賬號流程

歐大亮 Ohda

Shared 1 year ago

596 views

13:23

Gamma Function

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Shared 2 years ago

4.5K views

21:11

二階偏微分計算（極座標轉換）

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Shared 2 years ago

2.9K views

2:37

Properties of Laplace Transform : Final Value Theorem

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Shared 2 years ago

443 views

2:35

Properties of Laplace Transform : Initial Value Theorem

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Shared 2 years ago

347 views

4:36

Properties of Laplace Transform : Division by Time

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Shared 2 years ago

213 views

3:15

Properties of Laplace Transform : Multiplication by Time

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Shared 2 years ago

210 views

5:42

Properties of Laplace Transform : Integral in Time

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Shared 2 years ago

317 views

6:12

Properties of Laplace Transform : Time Differentiation

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Shared 2 years ago

352 views

5:45

Properties of Laplace Transform : Shifting Theorem

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Shared 2 years ago

281 views

3:20

Properties of Laplace Transform: Time Scaling

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Shared 2 years ago

222 views

2:41

Properties of Laplace Transform : Linearity

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Shared 2 years ago

533 views

7:44

|sinx - siny| 小於等於 |x - y| 證明

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Shared 3 years ago

1.4K views

15:23

EP15 Fourier Integral與Fourier Transform的大方向

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Shared 3 years ago

974 views

13:41

EP14 Fourier series的大方向

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Shared 3 years ago

1.3K views

13:03

旋轉曲面表面積 Area of a Surface of Rovolution

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Shared 3 years ago

1.7K views

25:55

求曲線弧長 Arc Length

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Shared 3 years ago

2K views

44:46

反三角函數 inverse trigonometric functions

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Shared 3 years ago

2.9K views

39:55

反函數 Inverse Function

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Shared 3 years ago

2.9K views

17:40

雙曲函數及其微分公式證明 hyperbolic trigonometric functions

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Shared 3 years ago

4.4K views

17:27

三角函數微分公式證明

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Shared 3 years ago

2.4K views

20:05

夾擠定理證明 sinx/x x趨近於0 等於1

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Shared 3 years ago

5.7K views

15:04

球座標與三重積分

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Shared 3 years ago

4.2K views

10:30

圓柱座標系與三重積分

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Shared 3 years ago

2.8K views

10:01

[基礎工數] 二重積分線性轉換

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Shared 3 years ago

1.2K views

26:19

[基礎工數] 二重積分極座標轉換

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Shared 3 years ago

3.6K views

19:53

[基礎工數] 二重積分交換積分次序

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Shared 3 years ago

3.8K views

14:15

[基礎工數] 二重積分如何求上下限?

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Shared 3 years ago

3.9K views

23:46

[基礎工數] 有理函數積分

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Shared 3 years ago

2.1K views

47:42

[基礎工數] 不定積分技巧四令u強力化簡

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Shared 3 years ago

2K views

26:44

[基礎工數] 不定積分技巧三分部積分

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Shared 3 years ago

3.6K views

38:56

[基礎工數]不定積分技巧二找微分關係

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Shared 3 years ago

2.5K views

11:22

[基礎工數] 不定積分技巧一化簡

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Shared 3 years ago

2.8K views

27:55

[基礎工數] 微積分基礎定理與萊布尼茲積分法則

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Shared 3 years ago

6.8K views

49:26

[基礎工數] 單變數與多變數函數連鎖律

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Shared 3 years ago

3.6K views

29:30

[基礎工數] 導數與偏導數

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Shared 3 years ago

3.8K views

30:52

[基礎工數] 極限與羅必達法則

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Shared 3 years ago

10K views

3:41

Gamma(1/2) = sqrt(pi)

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Shared 3 years ago

2.1K views

12:17

integral of exp(-ax^2)cos(bx)

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Shared 3 years ago

4.4K views

10:59

integral of exp(-ax^2)

歐大亮 Ohda

Shared 3 years ago

4.2K views

13:44

二階偏微分計算

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Shared 3 years ago

4.1K views

29:27

利用Disk Method 求旋轉體體積

歐大亮 Ohda

Shared 3 years ago

1.8K views

13:40

極座標曲線所圍面積

歐大亮 Ohda

Shared 3 years ago

1.5K views

50:28

利用黎曼和求極限值

歐大亮 Ohda

Shared 3 years ago

3.1K views

36:06

多變數函數的可微分性

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Shared 3 years ago

2.5K views

23:37

[複變] 無窮遠的留數

歐大亮 Ohda

Shared 3 years ago

1.3K views

12:39

週期函數與反曲點

歐大亮 Ohda

Shared 3 years ago

758 views