Understanding patterns
- To: mathgroup at smc.vnet.net
- Subject: [mg126094] Understanding patterns
- From: Sam Takoy <sam.takoy at yahoo.com>
- Date: Mon, 16 Apr 2012 06:10:27 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
Hi,
I hoping to get some pointers on understanding patterns. For example,
I can't quite make sense of the following:
f[p : {__?NumericQ}] :=
What is the meaning of "{", the double underscore, and the question
mark?
Many thanks in advance,
Sam
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