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December 5th, 2015, 02:56 PM  #1 
Newbie Joined: Dec 2015 From: France Posts: 1 Thanks: 0  Unique Sums
(I've studied maths in French so forgive me if my language is off sometimes) I'm trying to find a formula that gives all unique numbers you can get out of imputed numbers. For example if I imput 6,7 and 8 I will get: 6  7  8  6+7  6+8  7+8  6+7+8  6+7k  7+6k  8+6k  6+8k  7+8k  8+7k  6+7+8k  6+8+7k  7+8+6k Basically I'm trying to solve this kind of problem, let's suppose I go to a shop with x amount of money and I want to go from x amount to 0 using all unique combinations of item prices (knowing the item prices of course), there is still a possibility you can't get to 0 but I need to try every unique combination to know. (if anyone can help/guide me in any way would be greatly appreciated) 
December 5th, 2015, 05:54 PM  #2 
Math Team Joined: Dec 2013 From: Colombia Posts: 7,600 Thanks: 2588 Math Focus: Mainly analysis and algebra 
Its basically a Diophantine equation. You could read about those.


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