
LaTex Help Help with LaTex and writing math equations 
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December 22nd, 2015, 02:05 PM  #1 
Senior Member Joined: Jan 2012 Posts: 723 Thanks: 7  Root symbol
If I want to show root symbol other than square root symbol, how do I do it? For example, if I want to show third root, fourth root, fifth root symbol, etc, how do I do it?

December 22nd, 2015, 02:44 PM  #2 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,814 Thanks: 1046 Math Focus: Elementary mathematics and beyond 
\sqrt[n]{...}, where n is the nth root. For example, \sqrt[3]{81} gives $\displaystyle \sqrt[3]{81}$.

December 22nd, 2015, 02:44 PM  #3 
Member Joined: Dec 2015 From: Down Under Posts: 32 Thanks: 3 
For square root and cube root, you can write: sqrt(x) and cbrt(x) Otherwise I suppose you'll have to use exponents. Square root is x^(1/2), cube root is x^(1/3), 4th is x^(1/4) ... nth is x^(1/n) Edit: Oh, you mean LaTex. Don't ask me, I get by without it (X Last edited by Relentless; December 22nd, 2015 at 02:48 PM. 
December 22nd, 2015, 06:30 PM  #4 
Senior Member Joined: Jan 2012 Posts: 723 Thanks: 7 
Thank you.


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