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Re: multiple choice IF condition

• To: mathgroup at smc.vnet.net
• Subject: [mg56460] Re: [mg56427] multiple choice IF condition
• From: "David Park" <djmp at earthlink.net>
• Date: Tue, 26 Apr 2005 01:33:15 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Mark,

a = 0;
Table[If[MatchQ[i, 3 | 5 | 9 | 18], a = a + i], {i, 20}]

David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/

From: marloo3 at mail15.com [mailto:marloo3 at mail15.com]
To: mathgroup at smc.vnet.net

could we have a more practical way than this way of choosing some numbers of
the
choice:

a = 0;
Table[If[i == 3 || i == 5 || i == 9 || i==18, a = a + i], {i, 20}]

ie: i wish if it is possible like this:
If[i==3 ||5 ||9||18, ...]

Thanks very much
mark

• Follow-Ups:
  • Re: Re: multiple choice IF condition
    • From: DrBob <drbob@bigfoot.com>