# Automatically resizing brackets [duplicate]

I would like to be able to type ( and ) and for this to do the same as \left( and \right). Is this possible?
• in most cases it is best to avoid \left\right and use fixed sizes such as ( or \bigl( for example you would never want \left(x\right) as left-right makes a mathinner with additional horizontal space – David Carlisle Jan 6 '18 at 1:14