incorrect result with very large integer R

Asked Jul 14 '16 at 19:33

Active Jul 14 '16 at 19:51

Viewed 18 times

I just coded an algorithm on Fibonacci numbers. R returns a wrong result for:

290287121823^2 + 538783

R result is:

84266613096281242864828

I'm not doing any comparison here but basic operation. The result is stored as a numeric. Is there any workaround? I have options(scipen=999) enabled.

Mathematica gives the correct answer which is:

84266613096281243382112

edited Jul 14 '16 at 19:51

asked Jul 14 '16 at 19:33

noblabla

Did you declare it as int64? – Missy Jul 14 '16 at 19:36
1

@Missy I tried but without success since the package is deprecated https://cran.r-project.org/web/packages/int64/index.html – noblabla Jul 14 '16 at 19:48

incorrect result with very large integer R

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