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TrackedSymbols

TrackedSymbols
is an option to Refresh, Manipulate, and related functions that specifies which symbols should trigger updates when their values are changed.
  • The following settings can be used:
Allall possible symbols
Fullsymbols that appear explicitly in the input expression
Truesymbols that appear in Manipulate, etc. controls
Automaticsymbols being tracked in enclosing constructs
{x,y,z,...}an explicit list of symbols
  • When a list of symbols is given, the typical usage is .
Specify symbols in Manipulate that will be used for updating:
Specify symbols in Manipulate that will be used for updating:
Symbols in an explicit list will not be tracked if they were not evaluated in the enclosing construct:
Using Rule for TrackedSymbols fails in some cases because the symbols are evaluated:
Generally, RuleDelayed should always be used for TrackedSymbols:
New in 6 | Last modified in 7