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LaTex Help Help with LaTex and writing math equations


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April 5th, 2016, 07:26 PM   #1
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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.
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April 5th, 2016, 07:33 PM   #2
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\pi
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April 6th, 2016, 08:38 AM   #3
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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.
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April 6th, 2016, 09:03 AM   #4
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Quote:
Originally Posted by Country Boy View Post
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 $\displaystyle \left{ \pi \right}$
That would be \left \{
\left \{ \pi \right \} gives $\displaystyle \left \{ \pi \right \}$

This only has to be done for the curly brackets.

-Dan
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April 6th, 2016, 09:36 AM   #5
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Quote:
Originally Posted by Country Boy View Post
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 $\displaystyle \left{ \pi \right}$
I think you still have to re-edit or repost since what you posted is not displaying correctly.
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April 6th, 2016, 09:40 AM   #6
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Quote:
Originally Posted by Chikis View Post
I think you still have to re-edit or repost since what you posted is not displaying correctly.
Done:
Quote:
Originally Posted by Country Boy View Post
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:

Code:
$\displaystyle \left[ \pi \right]$
gives $\displaystyle \left[ \pi \right]$
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April 6th, 2016, 11:06 AM   #7
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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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