How to prevent Matlab from rounding small numbers to zero?

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Ali Kareem
Ali Kareem on 14 Oct 2016
Commented: Walter Roberson on 2 Mar 2021
I am trying to find cross-correlation without using function
The code works for large numbers. However, for small numbers the code fail. It's round small numbers to zero. I tried to use
format longE
But it is not working. Any help will be very appreciated.
Walter Roberson
Walter Roberson on 14 Oct 2016
When you refer to "The code", are you referring to Mathwork's xcorr or to code that you yourself have written?

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Answers (1)

Pritesh Shah
Pritesh Shah on 14 Oct 2016
Check the code once again. You can see code of xcorr function using edit xcorr
Walter Roberson
Walter Roberson on 2 Mar 2021
When people are for some reason not permitted to use a particular function, then they can still often get an understanding of how the function works by using "edit" with the function name.

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