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November 7th, 2015, 12:06 PM  #1 
Newbie Joined: Nov 2015 From: Lincoln Posts: 1 Thanks: 0 
Hi all, Please can someone help me understand the brackets in the formulas I have attached? I am assuming that they some other meaning than conventional rounded brackets. Any info gratefully received. Thanks Martin Last edited by skipjack; November 12th, 2015 at 02:11 AM. 
November 7th, 2015, 12:11 PM  #2  
Math Team Joined: May 2013 From: The Astral plane Posts: 2,258 Thanks: 929 Math Focus: Wibbly wobbly timeywimey stuff.  Quote:
Dan Last edited by skipjack; November 9th, 2015 at 03:26 AM.  
November 9th, 2015, 01:24 AM  #3 
Senior Member Joined: Apr 2014 From: Glasgow Posts: 2,157 Thanks: 732 Math Focus: Physics, mathematical modelling, numerical and computational solutions 
Yep, I think the choice of using triangular brackets in this case was either i) a mistake or ii) the writer doesn't know (or care) that triangular brackets have been used for other things (like the mean in statistics, braket notation, etc.)


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