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MathGroup Archive 2009

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How to map a list on function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97472] How to map a list on function
  • From: buts <manger31 at yahoo.com>
  • Date: Sat, 14 Mar 2009 05:35:16 -0500 (EST)

Hello,

Could anyone explain me how to do the following:
I have a long list of integer numbers in groups of four:

list= {{10,3,5,7},{4,6,8,9},{0,8,3,6}, ...... }

or its Flatten version.

How to write a fast function g[list] which does this:

g[list] =x^10*y^3*z^5*u^7 + x^4*y^6*z^8*u^9 + y^8*z^3*u^6+ ...

It should be done many times (say, 10^4-6) on lists with length > 1000, so taking parts is not a good idea.
How to use Map or similar ?
Thanks.


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