General ⇒ Get rid of parentheses..

[assafwe]

Hi,

I have an irritating problem with some parentheses showing up in my case environment formula(see attached figure).. I simply can't get rid of it!

Does anybody know what this is??

Thanks,

Asaf

[frabjous]

Are you trying to remove he braces { } inside one of the cases, or the parentheses going along with the equation number?

Either way, post the code you're using here, so we can examine it.

[assafwe]

Hi,

I didn't really get what you were asking..

Here is the code:

Code: Select all

\begin{equation}
S_{\mbox{QC}}(X)=\begin{cases}
(a_{1}(X),b(X)),\  & X<x_{1}\\
{}[0,b(X)),\  & x_{1}<X<x_{0}\\
(0,b(X)),\  & x_{0}<X<x_{2}\\
(a_{2}(X),b(X)),\  & x_{2}<X<x_{3}\\
\tilde{S}(X),\  & X>x_{3},\end{cases}\end{equation}

Im trying to get rid of the "{}" at the beginning of the 4th row.

Thanks,

Asaf

[localghost]

Just delete them. Beyond that I see no further difficulties.

Code: Select all

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage{amsmath}

\begin{document}
  \begin{equation}
    S_{\mbox{QC}}(X)=
    \begin{cases}
      (a_{1}(X),b(X)),\ & X<x_{1}\\
      [0,b(X)),\ & x_{1}<X<x_{0}\\
      (0,b(X)),\ & x_{0}<X<x_{2}\\
      (a_{2}(X),b(X)),\ & x_{2}<X<x_{3}\\
      \tilde{S}(X),\ & X>x_{3},
    \end{cases}
  \end{equation}
\end{document}

Best regards
Thorsten

[assafwe]

- when I try to delete them through the editor, they come back..
can I delete it from the source code? if so, how do I do this?

tnx,

asaf

[frabjous]

What editor are you using?

[assafwe]

- I'm using LyX..