Maths question
 

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[Closed] Maths question

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If I had a list of numbers, some positive, some negative and wanted to add them together, ignoring the sign, is there a mathematical term for the result???

For example:
-1
-5
+2
+3
--
11
--

Or has my distant memory of A Level maths let me down?


 
Posted : 30/07/2010 1:51 pm
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The sum of them?


 
Posted : 30/07/2010 1:52 pm
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'wrong' ?


 
Posted : 30/07/2010 1:52 pm
 MS
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You wont be 'adding' them if they are different signs to get that answer.

Can I ask why?


 
Posted : 30/07/2010 1:54 pm
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somethingion of the absolute values?


 
Posted : 30/07/2010 1:55 pm
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sum of the magnitudes?

|-1| + |-5| + |+2| + |+3| = 11


 
Posted : 30/07/2010 1:55 pm
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Sum of the square roots of the squares?


 
Posted : 30/07/2010 2:02 pm
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Absolute Values - that's the term I was thinking of...

Basically have a whole load of misprocessed entries I and want to measure the total ****-up rather than netting them off and making it look better than it is...

Much appreciated bristolbiker


 
Posted : 30/07/2010 2:04 pm
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'Sum of the total ****-up' sounds way better to me 🙂


 
Posted : 30/07/2010 2:09 pm
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I win!!! 😀 If you have the data electronically, Excel has an absolute function, so you can sum the column/row as-is or sum the absolute values and then see the difference


 
Posted : 30/07/2010 2:30 pm
 Pook
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why do i get -1?


 
Posted : 30/07/2010 2:32 pm
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The absolute value is also known as the modulus of the number.


 
Posted : 30/07/2010 2:35 pm