[texhax] \hline in align environment

Herbert Voss Herbert.Voss at FU-Berlin.DE
Tue Jan 6 15:43:57 CET 2009


Sebastian Canagaratna schrieb:

> >    I posted yesterday to texhax my solution to the problem of drawing a
> > horizontal line at the bottom of two aligned simultaneous equations; I
> > had not been successful in finding any previous solution. It was this:
> >
> > \begin{align*}
> >       4x+  6y -2z &= -4\\
> >        x -y +2z   &=  9\\[-0.2in]
> >
\underline{\phantom{4x+6y-2z}}&\underline{\phantom{y}}\underline{\phantom{-4y}}\\

\underline{\phantom{4x+6y-2z}}\rlap{$\underline{\phantom{\mathrel{=}-y}}$}\\

Herbert



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