How to prevent Matlab from rounding small numbers to zero?

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Hi,
I am trying to find cross-correlation without using function
xcorr
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.
Thanks
  2 Comments
Image Analyst
Image Analyst on 14 Oct 2016
You forgot to attach data.xlsx. Please attach it so people can try your code.
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
  2 Comments
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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