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Re: Possible Bug Report: CoefficientList

• To: mathgroup at smc.vnet.net
• Subject: [mg88879] Re: Possible Bug Report: CoefficientList
• From: AngleWyrm <anglewyrm at yahoo.com>
• Date: Tue, 20 May 2008 02:26:48 -0400 (EDT)
• References: <200805190915.FAA12556@smc.vnet.net> <g0rlso$elr$1@smc.vnet.net>

On May 19, 3:47 am, "W_Craig Carter" <ccar... at mit.edu> wrote:
> Hello,
> The following will work and gives you a hint of what is going wrong:
>
> Table[Chances[numberDice, 6], {numberDice, 3, 5}]
>
> To avoid this,  localize the scope of x.
>
> Chances[dice_, sides_] :=
>  Module[{x}, CoefficientList[Expand[(Sum[x^i, {i, sides}])^dice], x]]
>
> Table[Chances[x, 6], {x, 3, 5}]

Thanks, and glad it's my bug with an inadvertantly multi-tasked
variable, rather than Mathematica.

• References:
  • Possible Bug Report: CoefficientList
    • From: anglewyrm@yahoo.com