Complex128

• Import can read any binary data as a sequence of 128-bit complex numbers.
• Export converts a list of integer, real, or complex numbers to a sequence of binary 128-bit complex numbers.
• IEEE single-precision numbers can be imported and exported using the "Complex64" format.

Background & Context

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

Import & Export

• Import["file","Complex128"] imports any file as IEEE double-precision complex numbers, returning a packed array of real numbers.
• Export["file",list,"Complex128"] exports a list of complex numbers to file.
• Import["file",{"Complex128",elem}] or Import["file",elem ] imports the specified element from file.
• Import["file",{"Complex128",{elem₁,elem₂,…}}] imports multiple elements.
• See the following reference pages for full general information:

• 	Import, Export	import from or export to a file
  	CloudImport, CloudExport	import from or export to a cloud object
  	ImportString, ExportString	import from or export to a string
  	ImportByteArray, ExportByteArray	import from or export to a byte array

Import Elements

• General Import elements:

• 	"Elements"	list of elements and options available in this file
  	"Summary"	summary of the file
  	"Rules"	list of rules for all available elements

• Data representation element:

• "Data"

  list of complex numbers

• By default, Import and Export use the "Data" element.
• Import["file",{"Complex128",n}] reads the n double-precision complex 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

  $ByteOrdering

  what byte ordering to use

• Import option:

• "HeaderBytes"

  0

  how many bytes to skip at the beginning of the file