The flavor variable describes a random symbol.  By default variables are single-character lowercase letters from the English alphabet.

The length and alphabet options match those defined by the StringTools:-Random command.

Generated random variables are globally scoped in the Maple environment.  This command does not attempt to avoid returning a variable that matches something in use, possibly with an assigned value.

$\mathrm{with}\left(\mathrm{RandomTools}\right)\:$

$\mathrm{Generate}\left(\mathrm{variable}\right)$

$y$

$\mathrm{Generate}\left(\mathrm{variable}\left(''abc''\right)\right)$

$c$

$\mathrm{Generate}\left(\mathrm{variable}\left(\mathrm{upper}\,\mathrm{length}=3\right)\right)$

$\mathrm{GKY}$

The RandomTools Flavor: variable command was introduced in Maple 2018.

For more information on Maple 2018 changes, see Updates in Maple 2018.