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DOCUMENTATION CENTER SEARCH
Mathematica
>
Data Manipulation
>
Importing & Exporting
>
Mathematica
Import/Export Format
Real32
Uniform sequence of IEEE single-precision numbers.
Binary data format.
Import
can read arbitrary binary data as a sequence of single-precision numbers.
Export
can convert a list of arbitrary integers or reals to binary single-precision numbers.
IMPORT AND EXPORT
Import
["
file
", "Real32"]
imports any file as 32-bit IEEE single-precision numbers, returning a packed array of real numbers.
Export
["
file
",
list
, "Real32"]
exports a list of real numbers to
file
.
Import
["
file
", {"Real32",
elem
}]
or
Import
["
file
",
elem
]
imports the specified element from
file
.
Import
["
file
", {"Real32", {
elem
1
,
elem
2
,
...
}}]
imports multiple elements.
See the reference pages for full general information on
Import
and
Export
.
ImportString
and
ExportString
support the Real32 format.
ELEMENTS
General
Import
elements:
"Elements"
elements and options available in this file
"Rules"
full rules for each element and option
"Options"
rules for options, properties, and settings
Data representation element:
"Data"
list of real numbers
By default,
Import
and
Export
use the
"Data"
element.
Import
["
file
", {"Real32",
n
}]
reads the
n
single-precision number from
file
.
Import
returns
Infinity
for IEEE "infinity", and
Indeterminate
for IEEE "not-a-number".
Trailing bytes are ignored if the size of the imported file is not a multiple of the data size.
OPTIONS
General option:
ByteOrdering
-1
what byte ordering to use
Import
option:
"HeaderBytes"
0
how many bytes to skip at the beginning of the file
SEE ALSO
Binary
Bit
Byte
Character8
Character16
Integer8
Integer16
Integer24
Integer32
Integer64
Integer128
UnsignedInteger8
UnsignedInteger16
UnsignedInteger24
UnsignedInteger32
UnsignedInteger64
UnsignedInteger128
Real64
Real128
Complex64
Complex128
Complex256
String
MORE ABOUT
Binary Data
Importing & Exporting
Listing of All Formats
EXAMPLES
CLOSE ALL
Basic Examples
Convert a list of integers and reals to IEEE single-precision numbers:
In[1]:=
Out[1]=
Convert the previous result back to
Mathematica
numbers:
In[2]:=
Out[2]=
© 2008 Wolfram Research, Inc.