Representation of Numbers

Integers and Real numbers with any number of digits, automatically tagging numerical precision when appropriate.

Precision is not “guarded” through the evaluation process. Only integer precision is supported.

However, things like N[Pi, 100] should work as expected.

Accuracy — find the accuracy of a number
IntegerExponent — get the number of trailing 0s in a given base
IntegerLength — get total number of digits in any base
$MachineEpsilon — get the difference between 1.0 and the next-nearest number representable as a machine-precision number
MachinePrecision — symbol used to indicate machine‐number precision
$MachinePrecision — get the number of decimal digits of precision for machine-precision numbers
$MaxPrecision — settable global maximum precision bound variable
$MinPrecision — settable global minimum precision bound
NumberDigit — get digits of a real number
Precision — find the precision of a number
RealDigits — get digits of a real number