29 lines
473 B
Markdown
29 lines
473 B
Markdown
---
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aliases:
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up:
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tags:
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---
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$$
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\begin{pmatrix} a & c \\ b & d\end{pmatrix}
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\begin{pmatrix}1\\0\end{pmatrix}
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=
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\begin{pmatrix}1 \\ 0\end{pmatrix}
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\iff
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\begin{pmatrix}a\\b\end{pmatrix} = \begin{pmatrix}1\\0\end{pmatrix}
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$$
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$$
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\begin{pmatrix} a & c \\ b & d\end{pmatrix}
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\begin{pmatrix}0\\1\end{pmatrix}
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=
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\begin{pmatrix}1 \\ 1\end{pmatrix}
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\iff
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\begin{pmatrix}c\\ d\end{pmatrix} = \begin{pmatrix}1\\ 1\end{pmatrix}
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$$
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$P = \begin{pmatrix}1 & 1 \\ 0 & 1\end{pmatrix}$
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