ROTASI | MATRIKS ROTASI | HASIL ROTASI |
Rotasi terhadap \((0,0)\)
dengan sudut \(\theta\) |
\(\begin{pmatrix} \cos \theta & -\sin \theta \\ \sin \theta & \cos \theta \end{pmatrix}\) | \(\begin{pmatrix} x' \\ y' \end{pmatrix} = \begin{pmatrix} \cos \theta & -\sin \theta \\ \sin \theta & \cos \theta \end{pmatrix} \begin{pmatrix} x \\ y \end{pmatrix}\) |
Rotasi terhadap \((a,b)\)
dengan sudut \(\theta\) |
\(\begin{pmatrix} \cos \theta & -\sin \theta \\ \sin \theta & \cos \theta \end{pmatrix}\) | \(\begin{pmatrix} x' - a \\ y' - b \end{pmatrix} = \begin{pmatrix} \cos \theta & -\sin \theta \\ \sin \theta & \cos \theta \end{pmatrix} \begin{pmatrix} x - a \\ y - b \end{pmatrix}\) |