Mathematica 9 is now available
[an error occurred while processing this directive] $MachineEpsilon

  • $MachineEpsilon gives the smallest machine-precision number which can be added to 1.0 to give a result that is distinguishable from 1.0.
  • $MachineEpsilon is typically , where is the number of binary bits used in the internal representation of machine-precision floating-point numbers.
  • $MachineEpsilon measures the granularity of machine-precision numbers.
  • See the Mathematica book: Section 3.1.6.
  • See also: $MachinePrecision, $MinMachineNumber, $MaxMachineNumber.
  • Related package: NumericalMath`ComputerArithmetic`.


    Any questions about topics on this page? Click here to get an individual response.Buy NowMore Information
    THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
    SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.