mathcapture-004.lvt

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\begin{document}

\START

11-2-17:
\begin{equation}
\begin{aligned}
  x^2 + y^2  &= 1             \\
          x  &= \sqrt{1-y^2}  \\
 \text{and also }
          y  &= \sqrt{1-x^2}
\end{aligned}
\qquad
\begin{gathered}
  (a + b)^2 = a^2 + 2ab + b^2 \\
  (a + b) \cdot (a - b)
           = a^2 - b^2
\end{gathered}
\end{equation}


\END