LaTex \left and \right

Hi guys,

• Today I will tell you what \left and \right means in LaTex.
• Sometimes you need to enclose fractions in equations within tall brackets. That's where these \left and \right comes in to play.
• syntax: \left c1 cmds \right c2
c1 and c2 are called enclosing symbols. Some of the frequently used enclosing symbols are: (  )  [  ]   \{   \}  |

\left (\frac{a}{b} \right )

• If you didn't use \left and \right, this is what you will get:

          (\frac{a}{b})
               

• Sometimes you may need such a symbol, but only at one side.
• Then the syntax is: \left . cmds \right c2
• That is, a period is used for the side where you do not use the enclosing symbol

                \left . \frac{a}{b} \right |