which one is the correct procedure for summation
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Renjith V Ravi
el 13 de Feb. de 2017
Respondida: Walter Roberson
el 13 de Feb. de 2017
I want to implement the following equation
Kindly tell me,which method is correct
ID =0;
for i=1:256
ID = ID+HD(i);
end
or otherwise
ID = sum(HD(1:256))
Please help me
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Walter Roberson
el 13 de Feb. de 2017
ID = sum(HD(1:256)) is faster.
If you were summing large enough arrays then there could be difference in the output due to round off differences when the large summation was handed over to fast routines that use multiple threads to create partial sums that are then added together.
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