numericalipb:lecture4

差分

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--- numericalipb:lecture4 [2025/07/01 02:10] – 作成 yuki
+++ numericalipb:lecture4 [2025/07/02 14:39] (現在) – [任意の座標中心の回転] yuki
@@ 行 687: / 行 687: @@
 実際の変換は逆変換で行う。
-\[
+\begin{eqnarray}
 \left(\begin{array}{c}x_{0}\\y_{0}\end{array}\right)
-=
+&=&
 \left(\begin{array}{cc}\cos\theta&\sin\theta\\-\sin\theta&\cos\theta\end{array}\right)
 \left(
@@ 行 697: / 行 697: @@
 \end{array}
 \right)
-\]
+\\
+&=&
-\begin{eqnarray}
+\left(
-x_{0}&=&\left\{x_{1}-c_{x}(1-\cos\theta)-c_{y}\sin\theta\right\}\cos\theta+\left\{y_{1}+c_{x}\sin\theta-c_{y}(1-\cos\theta)\right\}\sin\theta\\
+\begin{array}{c}
-&=&\left(x_{1}-c_{x}\right)\cos\theta+\left(y_{1}-c_{y}\right)\sin\theta+c_{x}\\
+\left(x_{1}-c_{x}\right)\cos\theta+\left(y_{1}-c_{y}\right)\sin\theta+c_{x}\\
-y_{0}&=&-\left\{x_{1}-c_{x}(1-\cos\theta)-c_{y}\sin\theta\right\}\sin\theta+\left\{y_{1}+c_{x}\sin\theta-c_{y}(1-\cos\theta)\right\}\cos\theta\\
+-\left(x_{1}-c_{x}\right)\sin\theta+\left(y_{1}-c_{y}\right)\cos\theta+c_{y}
-&=&-\left(x_{1}-c_{x}\right)\sin\theta+\left(y_{1}-c_{y}\right)\cos\theta+c_{y}
+\end{array}
+\right)
 \end{eqnarray}

numericalipb/lecture4.txt · 最終更新: 2025/07/02 14:39 by yuki