# Cedar formula notes

Self-authored test document. No personal data.

Inline: \(a_1^2 + b_1^2 = c_1^2\).

Block:
\[
y = \frac{x+1}{x-1},\quad x \ne 1
\]

Aligned:
\[
\begin{aligned}
f(x) &= (x+1)^2 \\
     &= x^2 + 2x + 1
\end{aligned}
\]