Asked by Dark Warrior
on 8 May 2013

Assuming you have a vector x=[16,18,23,24,39,40], create a function that when called at the command window, will display the count of random numbers(elements in vector X) needed to make a sum of 100. One should also display the combination of those random numbers.

Any help is highly appreciated.

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The Dark Warrior

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## 3 Comments

## the cyclist (view profile)

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/75025#comment_147933

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

## Matt Kindig (view profile)

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/75025#comment_147947

Are you sure that there exists a set of elements in your x vector that sum to 100? I tried your problem and could not find one.

By the way, my method involves using perms() and cumsum()--maybe that will help you.

## Elige Grant (view profile)

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/75025#comment_147959

I am wondering if by "count" we can use one of the numbers from the list more than once (e.g., 4*16 + 2*18 = 100).