As described in the math tools documentation, \DeclarePairedDelimiter does a lot the things we have done manually, but more cleanly if you just want to toggle between using \left\right or not adjusting the size. Right now \lcrx does not lead to good looking superscripts and subscripts, for example.
As described in the math tools documentation,
\DeclarePairedDelimiter
does a lot the things we have done manually, but more cleanly if you just want to toggle between using \left\right or not adjusting the size. Right now\lcrx
does not lead to good looking superscripts and subscripts, for example.