Aligning the right parts in multiple \begin{cases}

Question

Is there an intelligent way to left-align the parts right of & of the two cases environments shown below (if x >= 0, otherwise, if y < 0, otherwise). I wonder if there is a better way than using manual spaces:

\begin{align*}
 u(x) &=
  \begin{cases}
   0        & \text{if } x \geq 0 \\
   1        & \text{otherwise}
  \end{cases}
  \\
 \tau &=
  \begin{cases}
   a+b+c+d  & \text{if } y < 0 \\
   1        & \text{otherwise}
  \end{cases}
\end{align*}

alt text

The easiest solution I can come up with is to use the mathtools package and use something like \mathrlap0\hphantom{a+b+c+d} in place of your 0. But that's playing with manual spacing, I suppose. — TH., Sep 21 '10 at 02:04
You can use the solutions to an earlier question, just exchanging the order of the statements. — Caramdir, Sep 21 '10 at 02:09
Both great. Thanks. Much better than fiddling with manual \quad-s etc. — u17, Sep 21 '10 at 02:16
@TH, @Caramdir: If you can put up an answer or two, as @SamB suggests, then we can shift this qn off the "Unanswered" list. — Charles Stewart, Oct 05 '10 at 07:54

score 16 · Accepted Answer · edited Apr 13 '17 at 12:35

16

You can use the solutions to an earlier question, just exchanging the order of the statements.

Another solution is to use the mathtools package and use something like \mathrlap0\hphantom{a+b+c+d} in place of your 0.

edited Apr 13 '17 at 12:35

Community

1

answered Oct 05 '10 at 14:23

Caramdir

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Aligning the right parts in multiple \begin{cases}

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