Is there a way to have a pmatrix
environment from amsmath
use non-whitespace delimiters such as a comma? I am mainly asking, because I would like to make a row vector this way. I take it, there are essentially two ways of doing something like that:
\documentclass{standalone}
\usepackage{mathtools}
\begin{document}
\begin{gather*}
a = \left(1,2,3\right) \\
b = \begin{pmatrix} 1, & 2, & 3 \end{pmatrix}
\end{gather*}
\end{document}
Now, especially the second part does not look too pretty:
Best Answer
https://tex.stackexchange.com/a/53961/6993 provides one solution. It also reminded me of
\DeclarePairedDelimiter
frommathtools
:A starred version
\Vector*
would precede\lparen
and\rparen
by\left
and\right
, respectively.