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Re: Re: Permanent Computation Efficiency

• To: mathgroup at smc.vnet.net
• Subject: [mg105369] Re: [mg105077] Re: Permanent Computation Efficiency
• From: ?UTF-8?B?5a2Z5oy6?= <sunt05 at mails.tsinghua.edu.cn>
• Date: Mon, 30 Nov 2009 06:09:12 -0500 (EST)
• References: <200911181200.HAA04436@smc.vnet.net> <he372o$err$1@smc.vnet.net>

Thanks all same!
The community is so nice:)

On Sun, Nov 29, 2009 at 2:39 AM, Leonid Shifrin <lshifr at gmail.com> wrote:

> Hi,
>
> Well, I wouldn't explain it better than Daniel did, and I know far less
> about it than he does. Since Coefficient takes derivatives, it does not need
> to expand the product, but can use the product formula for derivatives -
> this is I guess the reason for its efficiency in this case.
>
> Regards,
> Leonid
>
>
>
>> Could you please tell me what combinatorial knowledge is in need to
>> understand the function Coefficient?
>>
>>
>

• References:
  • Permanent Computation Efficiency
    • From: Sunt <sunting.05@gmail.com>