Online Help

format = one of auto, bzip2, gzip, zip, or zlib

This option allows a compression format to be specified explicitly. Options are auto, bzip2 , gzip , zip , or zlib .

If format=auto, then Uncompress will attempt to automatically detect the compression format used and uncompress the data with the correct method. Otherwise, if format is one of bzip2 , gzip , zip , or zlib , the specified compression format will be assumed. The default is auto.

The Uncompress(data) command takes the given byte array or list of integers and attempts to uncompress it. It returns a ByteArray.

If data is a list, its contents must be integers between -128 and 127.

$\mathrm{data}≔\mathrm{StringTools}:-\mathrm{Compress}\left(''The\; quick\; brown\; fox\; jumps\; over\; the\; lazy\; dog''\right)$

$\mathrm{data}≔\left[\begin{array}{ccccccccccccccccccccccccccccccccccccccccccccccccccc}120& \mathrm{-100}& 11& \mathrm{-55}& 72& 85& 40& 44& \mathrm{-51}& 76& \mathrm{-50}& 86& 72& 42& \mathrm{-54}& 47& \mathrm{-49}& 83& 72& \mathrm{-53}& \mathrm{-81}& 80& \mathrm{-56}& 42& \mathrm{-51}& 45& 40& 86& \mathrm{-56}& 47& 75& 45& 82& 40& 1& 74& \mathrm{-25}& 36& 86& 85& 42& \mathrm{-92}& \mathrm{-28}& \mathrm{-89}& 51& 0& 0& 107& \mathrm{-74}& 15& \mathrm{-38}\end{array}\right]$

$\mathrm{ArrayTools}:-\mathrm{Uncompress}\left(\mathrm{data}\right)$

$\left[\begin{array}{cccccccccccccccccccccccccccccccccccccccccccc}84& 104& 101& 32& 113& 117& 105& 99& 107& 32& 98& 114& 111& 119& 110& 32& 102& 111& 120& 32& 106& 117& 109& 112& 115& 32& 111& 118& 101& 114& 32& 116& 104& 101& 32& 108& 97& 122& 121& 32& 100& 111& 103& 0\end{array}\right]$

$\mathrm{timeline}≔''https://www.maplesoft.com/data/examples/dif/maple-timeline.dif.gz''\:$

$\mathrm{data}≔\mathrm{URL}:-\mathrm{Get}\left(\mathrm{timeline}\right)\:$

$\mathrm{numelems}\left(\mathrm{data}\right)$

$268$

$\mathrm{uncompressed}≔\mathrm{ArrayTools}:-\mathrm{Uncompress}\left(\mathrm{data}\right)\:$

$\mathrm{numelems}\left(\mathrm{uncompressed}\right)$

$268$

The ArrayTools[Uncompress] command was introduced in Maple 2015.

For more information on Maple 2015 changes, see Updates in Maple 2015 .

The ArrayTools[Uncompress] command was updated in Maple 2018.

The format option was updated in Maple 2018.