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Clear variables in a list

• To: mathgroup at smc.vnet.net
• Subject: [mg112058] Clear variables in a list
• From: Chris Degnen <degnen at cwgsy.net>
• Date: Sat, 28 Aug 2010 07:01:45 -0400 (EDT)

Any suggestions how to clear variables in a list, eg:

a = 1; b = 2; c = 3; vars = {a, b, c};

None of these work:

Map[Clear, vars]
Map[Clear[Unevaluated[#]] &, vars]
Apply[Clear, vars, {1}]

Only this works: Clear[a, b, c]