My Math Forum  

Go Back   My Math Forum > College Math Forum > Calculus

Calculus Calculus Math Forum


Reply
 
LinkBack Thread Tools Display Modes
October 16th, 2015, 05:36 AM   #1
Newbie
 
Joined: Oct 2015
From: United Kingdom

Posts: 1
Thanks: 0

Help on a hard question

Well Here is the Matrix for the question



What I am stuck on is the last two questions. The double sigma signs am I doing them right on question 2b? and question 2d I just dont know how to go about it.

M = 4
N = 4



Stuck

Appreciate any answers thanks.
Arrowzflame is offline  
 
October 16th, 2015, 08:27 AM   #2
Math Team
 
Joined: Jan 2015
From: Alabama

Posts: 3,264
Thanks: 902

Quote:
Originally Posted by Arrowzflame View Post
Well Here is the Matrix for the question



What I am stuck on is the last two questions. The double sigma signs am I doing them right on question 2b? and question 2d I just dont know how to go about it.

M = 4
N = 4

You have a notation error in indicating that these are 1 sum. Each set of parentheses are a sum over 1 index and summing the parentheses gives the double sum.

For (d) you have already correctly calculated $\displaystyle \overline{L}$ so you can construct the new matrix by subtracting $\displaystyle \overline{L}$ from each
number in the given matrix and squaring. Now find the sum as before

Quote:
Stuck

Appreciate any answers thanks.
Country Boy is offline  
Reply

  My Math Forum > College Math Forum > Calculus

Tags
hard, question



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help with Hard Question jamesbrown Elementary Math 5 May 25th, 2015 07:26 PM
Second Hard question! lcy329 Economics 0 November 20th, 2010 10:36 AM
very hard question riotsandravess Advanced Statistics 4 November 3rd, 2010 06:22 PM
a hard question ? delideli Calculus 4 December 30th, 2008 12:55 PM
Hard Question Infiniti Algebra 10 October 27th, 2007 03:03 AM





Copyright © 2019 My Math Forum. All rights reserved.