
LaTex Help Help with LaTex and writing math equations 
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April 5th, 2016, 07:26 PM  #1 
Senior Member Joined: Jan 2012 Posts: 720 Thanks: 7  How to show the symbol of pi
How do I show the left and right bracket using latex, and also the pi symbol?
Last edited by skipjack; April 6th, 2016 at 11:07 AM. 
April 5th, 2016, 07:33 PM  #2 
Math Team Joined: Dec 2013 From: Colombia Posts: 6,445 Thanks: 2117 Math Focus: Mainly analysis and algebra 
\pi

April 6th, 2016, 08:38 AM  #3 
Math Team Joined: Jan 2015 From: Alabama Posts: 2,279 Thanks: 570 
Left and right [ ], sized to whatever is in them is done by \left[ and \right]. Similarly, for ( ) and { }, use \left(, \right), \left{, and \right}. And, as V8Archie said, \pi for pi: $\displaystyle \left{ \pi \right}$ gives $\displaystyle \left{ \pi \right}$ Last edited by Country Boy; April 6th, 2016 at 08:44 AM. 
April 6th, 2016, 09:03 AM  #4  
Math Team Joined: May 2013 From: The Astral plane Posts: 1,518 Thanks: 580 Math Focus: Wibbly wobbly timeywimey stuff.  Quote:
\left \{ \pi \right \} gives $\displaystyle \left \{ \pi \right \}$ This only has to be done for the curly brackets. Dan  
April 6th, 2016, 09:36 AM  #5  
Senior Member Joined: Jan 2012 Posts: 720 Thanks: 7  Quote:
 
April 6th, 2016, 09:40 AM  #6  
Senior Member Joined: Nov 2010 From: Indonesia Posts: 1,163 Thanks: 111  Quote:
Quote:
 
April 6th, 2016, 11:06 AM  #7 
Global Moderator Joined: Dec 2006 Posts: 16,592 Thanks: 1199 
Some implementations of LaTeX, including mimeTeX, which is currently used by this website if you use latex tags rather than math tags, allow the use of \left{ and \right}. For coding implemented by MathJax, such as anything enclosed in math tags, the rules are stricter and it's necessary to use \left\{ and \right\} (or just \{ and \} if the displayed symbols are not required to be automatically resized). MathJax requires the extra "\" symbols only in conjunction with curly brackets (sometimes called braces) that are to be displayed, and doesn't accept them in conjunction with square brackets or parentheses. 

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