precision in operations

Jason Turner <jasont at indigoindustrial.co.nz> writes:

There isn't one.  R does all its calculations with system defined
double-precision or integers (on most platforms where R is used, these
are both 32 bits).  See help(is.single)

Usually the double-precision representation is 64 bits in memory and,
for the IA-32 processors (Intel and AMD x86 family), 80 bits in the
floating point registers.