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 .
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