Real128—Wolfram Documentation

  • Import can read arbitrary binary data as a sequence of quad-precision numbers.
  • Export can convert a list of arbitrary integers or reals to binary quad-precision numbers.

Background & Context

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

Import & Export

  • Import["file","Real128"] imports any file as 128-bit IEEE quad-precision numbers, returning a packed array of real numbers.
  • Export["file",list,"Real128"] exports a list of real numbers to file.
  • Import["file",{"Real128",elem}] or Import["file",elem ] imports the specified element from file.
  • Import["file",{"Real128",{elem1,elem2,}}] imports multiple elements.
  • See the following reference pages for full general information:
  • Import, Exportimport from or export to a file
    CloudImport, CloudExportimport from or export to a cloud object
    ImportString, ExportStringimport from or export to a string
    ImportByteArray, ExportByteArrayimport from or export to a byte array

Options

Examples

Basic Examples  (1)

Convert a list of integers and reals to IEEE quad-precision numbers:

Convert the previous result back to Wolfram Language numbers:

History

Introduced in 2004 (5.1) | Updated in 2007 (6.0)