[R] Precision in R

Duncan Murdoch murdoch at stats.uwo.ca
Tue Jul 20 19:13:16 CEST 2004


On Tue, 20 Jul 2004 11:55:32 -0400, adelmaas at musc.edu wrote :
>Does anyone know 
>where I can find specifications for R's type double?  

As far as I know, all platforms use the IEEE-754 standard double
precision numbers.  Google will give you a description; here's one:

http://research.microsoft.com/~hollasch/cgindex/coding/ieeefloat.html

This isn't relevant to your question, but I found the history of the
development of the standard interesting:

http://http.cs.berkeley.edu/~wkahan/ieee754status/754story.html

Duncan Murdoch




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