tex.tex 470 B

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  1. The quadratic formula is $$-b \pm \sqrt{b^2 - 4ac} \over 2a$$
  2. \bye
  3. \makeatletter
  4. \newcommand{\be}{%
  5. \begingroup
  6. % \setlength{\arraycolsep}{2pt}
  7. \eqnarray%
  8. \@ifstar{\nonumber}{}%
  9. }
  10. \newcommand{\ee}{\endeqnarray\endgroup}
  11. \makeatother
  12. \begin{equation}
  13. x=\left\{ \begin{array}{cl}
  14. 0 & \textrm{if }A=\ldots\\
  15. 1 & \textrm{if }B=\ldots\\
  16. x & \textrm{this runs with as much text as you like, but without an raggeright text
  17. .}\end{array}\right.
  18. \end{equation}