storing user input and count inputs

Okay here's my problem. User should enter real numbers, I have to store absoulte values, I have to count inputs, and I don't know how much number will user enter(inputs must be unlimited) requirement is to use while loop. in my homework is many requirements as well but I found solutions for others. help will be really appriciated

[Walter Roberson]

How will the user signal that they do not want to enter more numbers?

Is the user to be permitted, or prevented from entering more than one number at a time?

[Adam Danz]

Since this is homework, volunteers here won't (shouldn't) do it for you but we'd be glad to help you through it.

To start, what do you mean by "inputs".

1. Are you working with a function? or are you working with a dialog that asks users to enter some numbers?
2. Will the users enter a vector of numbers? A matrix of numbers?
3. "requirement is to use while loop" does that mean you will repeatedly ask the user for input or will you ask the user for input just at the beginning and then loop through the inputs?

You should map out the problem and show us the code you've written so far. Then explain where you're stuck. Often times the process of explaining the problem will lead to a solution or at least a few possible ideas for a solution. That should come from you.

[Walter Roberson]

My guess is that the values are to be entered until a condition is true based upon what is entered, in which case a "while" loop can be appropriate. For example,

x = call to get an input value
while x ~= -9999
    increase counter
    x = call to get an input value
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