# [texhax] Renewcommand not working for \Lambda and \Sigma

Luca Turchetti luca.turchetti at uniroma1.it
Tue Nov 29 15:51:58 CET 2005

```I would rather ask why it works (for you) with the other letters! How
can you get out of that loop if  \Lambda recursively calls itself?
Why don't you just change the name of your macro, say \tlambda, etc.?

KKThird at Yahoo.Com ha scritto:

> Hello all.
>
> I would like to redefine the capital Greek letters so that they can be
> used without worrying about putting \$ around them in in-line text. I
> was able to do this fine for all letters except for \Lambda and \Sigma
> (uppercase). The following is the code I used in the preamble of my
> document.
>
> \renewcommand{\Lambda}{\ensuremath \Lambda\xspace}
> \renewcommand{\Sigma}{\ensuremath\Sigma\xspace}
>
> What happens is that my LaTeX hits waht appears to be an infinite loop
> and then runs out of memory and then shuts down. Any thoughts on why
> \Lambda and \Sigma are the only ones (upper or lower case) that are
> giving me such trouble?
>
> Thanks,
> Ken
>
>
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