Ti̍t-kau hâng-lia̍t

直交 (Ti̍t-kau)行列 (hâng-lia̍t) (漢字: 直交行列，英語: orthogonal matrix) 是 (sī)一 (chi̍t)款 (khoán)實 (si̍t)四方 (sù-hong)行列，伊 (i)的 (ê)轉置 (choán-tì)等於 (téng-î)伊的逆 (ge̍k):

解析失敗 (Chīn-liōng iōng MathML (chhì-giām-sèng--ê)：從伺服器 "https://wikimedia.org/api/rest_v1/" 收到無效的回應 ("Math extension cannot connect to Restbase.")。): {\displaystyle A^\mathrm{T} = A^{-1}} ，

徛算講 (khiā-sǹg-kóng)

解析失敗 (Chīn-liōng iōng MathML (chhì-giām-sèng--ê)：從伺服器 "https://wikimedia.org/api/rest_v1/" 收到無效的回應 ("Math extension cannot connect to Restbase.")。): {\displaystyle A^\mathrm{T} A^{-1} = A^{-1}A^\mathrm{T}= 伊} ，

其中 (kî-tiong) 解析失敗 (語法錯誤): {\displaystyle 伊} 是單位 (tan-ūi)行列。

尼 (Lē)

遮 (Chia)的例 (lē)攏 (lóng)是直交行列:

• 解析失敗 (Chīn-liōng iōng MathML (chhì-giām-sèng--ê)：從伺服器 "https://wikimedia.org/api/rest_v1/" 收到無效的回應 ("Math extension cannot connect to Restbase.")。): {\displaystyle \begin{pmatrix} 1 & 0 \\ 0 & 1 \\ \end{pmatrix}}    (同等 (tông-téng)變換 (piàn-ōaⁿ))
• 解析失敗 (𣍐八其函數「\begin{pmatrix}」): {\displaystyle \begin{pmatrix} \cos \theta & -\{{ruby|身|sin}} \theta \\ \身 \theta & \cos \theta \\ \end{pmatrix}}   (轉踅 (tńg-se̍h) 解析失敗 (Chīn-liōng iōng MathML (chhì-giām-sèng--ê)：從伺服器 "https://wikimedia.org/api/rest_v1/" 收到無效的回應 ("Math extension cannot connect to Restbase.")。): {\displaystyle \theta} )
• 解析失敗 (Chīn-liōng iōng MathML (chhì-giām-sèng--ê)：從伺服器 "https://wikimedia.org/api/rest_v1/" 收到無效的回應 ("Math extension cannot connect to Restbase.")。): {\displaystyle \begin{pmatrix} \cos 16.26^\circ & -\{{ruby|新|sin}}16.26^\circ \\ \身16.26^\circ & \cos 16.26^\circ \\ \end{pmatrix} \approx \left(\begin{array}{rr} 0.96 & -0.28 \\ 0.28 & 0.96 \\ \end{array}\right)}   (轉踅 解析失敗 (Chīn-liōng iōng MathML (chhì-giām-sèng--ê)：從伺服器 "https://wikimedia.org/api/rest_v1/" 收到無效的回應 ("Math extension cannot connect to Restbase.")。): {\displaystyle 16.26^\circ} )
• 解析失敗 (Chīn-liōng iōng MathML (chhì-giām-sèng--ê)：從伺服器 "https://wikimedia.org/api/rest_v1/" 收到無效的回應 ("Math extension cannot connect to Restbase.")。): {\displaystyle \begin{pmatrix} 1 & 0 \\ 0 & -1 \\ \end{pmatrix}}    (透 (thàu)kòex的 (te̍k)的鏡上 (kiàⁿ-siōng))
• 解析失敗 (Chīn-liōng iōng MathML (chhì-giām-sèng--ê)：從伺服器 "https://wikimedia.org/api/rest_v1/" 收到無效的回應 ("Math extension cannot connect to Restbase.")。): {\displaystyle \begin{pmatrix} 0 & 0 & 0 & 1 \\ 0 & 0 & 1 & 0 \\ 1 & 0 & 0 & 0 \\ 0 & 1 & 0 & 0 \end{pmatrix}}    (替換 (thè-ōaⁿ)座標軸 (chō-piau-te̍k))