You could try the gmp multi precision arithmetic package. > library(gmp) > urand.bigz(10,64) [1] "11691875040763095143" "15618480061048441861" "13311871202921807091" "419603425985430936" [5] "1009212057431928522" "7087885826104674385" "12844267011818015745" "12455584250595618327" [9] "13509505397081611804" "17712034795004058021"
Rob Francisco J. Zagmutt wrote: > Also, look at options(digits) to set the number digits to be printed in > the console, i.e. > > > pi > [1] 3.141593 > > > options(digits=22) > > pi > [1] 3.141592653589793 > > > Regards > > Francisco > > > Roland Rau wrote: > >> 李俊杰 wrote: >> >>> Dear R-lister, >>> >>> One of my friends wanted to produce random number which is 64 bits. He did >>> it with Fortune. I think R can do it also. But I don't know how to display a >>> very big integer in the complete form but not scientific form. And what's >>> the biggest integer R can display in complete form ? >>> >>> Thanks in advance, >>> >>> Li Junjie >>> >>> >>> >>> >> I guess the biggest integer R can represent (if this is what you mean) >> is machine dependent and you can find it out via: >> >> .Machine >> help(".Machine") >> >> I hope this helps, >> Roland >> >> ______________________________________________ >> R-help@stat.math.ethz.ch mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > > > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.