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Built-in Functions / Numerical Computation / Numerical Precision /

$MachinePrecision

Usage

• $MachinePrecision gives the number of decimal digits of precision used for machine-precision numbers.


Notes

• A typical value of $MachinePrecision is or approximately 16.
• $MachinePrecision is the numerical value of MachinePrecision.
• See Section 3.1.4 and Section 3.1.6.
• See also: MachinePrecision, $MachineEpsilon, $MinMachineNumber, $MaxMachineNumber.
• Related package: NumericalMath`ComputerArithmetic`.
• New in Version 2; modified in 5.


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