• Import can read any binary data as a sequence of 256-bit complex numbers.
  • Export converts a list of integer, real, or complex numbers to a sequence of binary 256-bit complex numbers.
  • IEEE double-precision numbers can be imported and exported using the "Complex128" format.
  • Background

      Uniform sequence of IEEE quad-precision complex numbers.
      Binary data format.

    Import and Export

    • Import["file","Complex256"] imports any file as IEEE quad-precision complex numbers, returning a packed array of real numbers.
    • Export["file",list,"Complex256"] exports a list of complex numbers to file.
    • Import["file",{"Complex256",elem}] or Import["file",elem ] imports the specified element from file.
    • Import["file",{"Complex256",{elem1,elem2,}}] imports multiple elements.
    • See the reference pages for full general information on Import and Export.
    • ImportString and ExportString support the Complex256 format.


    • 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 complex numbers
    • By default, Import and Export use the "Data" element.
    • Import["file",{"Complex256",n}] reads the n^(th) quad-precision complex number from file.
    • Import returns Infinity for IEEE "infinity", and Indeterminate for IEEE "notanumber".
    • Trailing bytes are ignored if the size of the imported file is not a multiple of the data size.


    • General option:
    • ByteOrdering-1what byte ordering to use
    • Import option:
    • "HeaderBytes"0how many bytes to skip at the beginning of the file


    Basic Examples  (1)

    Convert a list of numbers to IEEE quad-precision complex numbers:

    Click for copyable input

    Convert the previous output back to Wolfram Language numbers:

    Click for copyable input

    See Also

    "Binary"  "Bit"  "Byte"  "Character8"  "Character16"  "Integer8"  "Integer16"  "Integer32"  "Integer64"  "Integer128"  "UnsignedInteger8"  "UnsignedInteger16"  "UnsignedInteger24"  "UnsignedInteger32"  "UnsignedInteger64"  "UnsignedInteger128"  "Real64"  "Real128"  "Complex64"  "Complex128"  "String"

    Introduced in 2004
    | Updated in 2007