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Re: Calculating a given total using only given specific

  • To: mathgroup at smc.vnet.net
  • Subject: [mg104298] Re: [mg104294] Calculating a given total using only given specific
  • From: Zach Bjornson <bjornson at mit.edu>
  • Date: Tue, 27 Oct 2009 04:56:27 -0500 (EST)
  • References: <200910260426.XAA18616@smc.vnet.net>

There's probably a nicer way to do this using higher functions in 
Mathematica, but using only basic functions:

OK = {56, 38, 20, 12, 4, 1};

add[target_] := Module[{total = 0},
   While[total < target,
    i = 1;
    While[OK[[i]] > target - total, i++];
    total += OK[[i]];
    Print[OK[[i]]]
    ]
   ]

-Zach


On 10/26/2009 12:26 AM, Rick T wrote:
> Calculating a given total using only given specific values
>
> Greetings All
>
> I'm trying to figure out a way to calculate a given total
> using only given specific values.
>
> Example:
> The total given is 46
> The numbers I can use are 56,38,20,12,4, and 1
> so the numbers it should use and come back with would be highest to
> lowest
> so it should be 38,4,and 4 because
> these will add up to 46.  Is there a name given to this type of
> mathematics?
>
> And does anyone have an example of how to do this?
>
> tia sal22
>
>    


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