R largest/smallest representable numbers

Question

I\'m trying to get the largest/smallest representable number in R.

After typing \".Machine\"

I got:

$double.xmin
[1] 2.225074e-308

$double.xmax
         


        

Answer 1

Here are some representations using SAS, IEEE 754 Big Endian?

data _null_;
    y=constant('big');
    put y hex16.;
    put y E21.3;
run;quit;

Biggest

7FEFFFFFFFFFFFFF 1.79769313486230E+308

data _null_;
    y=constant('small');
    put y hex16.;
    put y E21.3;
run;quit;

Smallest

0010000000000000 2.22507385850720E-308

I am not sure the smallest because SAS may set aside some values for missings.