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Stephen Wolfram
SEARCH MATHEMATICA 8 DOCUMENTATION
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE
DOCUMENTATION CENTER
FOR THE LATEST INFORMATION.
Mathematica
>
Representation of Numbers
>
Built-in
Mathematica
Symbol
Numerical Precision
Tutorials »
|
Precision
NumberQ
InexactNumberQ
MachinePrecision
See Also »
|
Atomic Elements of Expressions
Precision & Accuracy Control
Representation of Numbers
Testing Expressions
More About »
MachineNumberQ
MachineNumberQ
[
expr
]
returns
True
if
expr
is a machine-precision real or complex number, and returns
False
otherwise.
EXAMPLES
CLOSE ALL
Basic Examples
(1)
Check whether numbers are machine numbers or not.
In[1]:=
Out[1]=
In[2]:=
Out[2]=
Scope
(1)
Applications
(1)
Properties & Relations
(1)
SEE ALSO
Precision
NumberQ
InexactNumberQ
MachinePrecision
TUTORIALS
Numerical Precision
MORE ABOUT
Atomic Elements of Expressions
Precision & Accuracy Control
Representation of Numbers
Testing Expressions
New in 2
© 2013 Wolfram Research, Inc.
EXAMPLES
Basic Examples 
Scope 