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SEARCH MATHEMATICA 8 DOCUMENTATION
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE
DOCUMENTATION CENTER
FOR THE LATEST INFORMATION.
Mathematica
>
Precision & Accuracy Control
>
Built-in
Mathematica
Symbol
Numerical Precision
Machine-Precision Numbers
Tutorials »
|
MachinePrecision
$MachineEpsilon
$MinMachineNumber
$MaxMachineNumber
See Also »
|
Precision & Accuracy Control
Representation of Numbers
System Information
More About »
$MachinePrecision
$MachinePrecision
gives the number of decimal digits of precision used for machine-precision numbers.
MORE INFORMATION
A typical value of
$MachinePrecision
is
53log
10
2
or approximately 16.
$MachinePrecision
is the numerical value of
MachinePrecision
.
EXAMPLES
CLOSE ALL
Basic Examples
(1)
Hardware machine precision used for floating point computation:
In[1]:=
Out[1]=
Scope
(1)
Applications
(1)
Properties & Relations
(3)
Possible Issues
(1)
SEE ALSO
MachinePrecision
$MachineEpsilon
$MinMachineNumber
$MaxMachineNumber
TUTORIALS
Numerical Precision
Machine-Precision Numbers
MORE ABOUT
Precision & Accuracy Control
Representation of Numbers
System Information
New in 2 | Last modified in 5
© 2013 Wolfram Research, Inc.
EXAMPLES
Basic Examples 
Scope 