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Sum of all lines in file without roundup with awk

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Top Forums Shell Programming and Scripting Sum of all lines in file without roundup with awk
# 8  
Old 08-12-2009
FWIW -
perl and awk internally represent numbers as doubles. Most implementations have a limit set of DBL_DIG = 15.

Therefore having more than 15 digits in your output string (by forcing it with the format command like printf("%22.18", value) ) is going to give you garbage at some point in the number string.
# 9  
Old 08-12-2009
Quote:
Originally Posted by Franklin52
Code:
printf("%.11f\n",a)

Thank you, works like a charm Smilie .

---------- Post updated at 02:15 PM ---------- Previous update was at 02:13 PM ----------
Quote:
Originally Posted by jim mcnamara
FWIW -
perl and awk internally represent numbers as doubles. Most implementations have a limit set of DBL_DIG = 15.

Therefore having more than 15 digits in your output string (by forcing it with the format command like printf("%22.18", value) ) is going to give you garbage at some point in the number string.
I don't think I ever need more then 11, but thank you for the info.
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