While problem, generating random numbers

Write a function called one_so_small that takes no input arguments

and returns three scalars as output arguments. If it is called this way,

[a,b,c] = one_so_small, then it repeatedly gets three numbers from the

function rand until the numbers pass this test: ten times one of the numbers

is smaller than the product of the other two numbers. For example, if the

three random numbers are 0.4, 0.03, and 0.9, then ten times the second number

is 0.3 and the product of the first and third numbers is 0.36, so ten times

one of these three numbers is smaller than the product of the other two numbers.

On the other hand, if the second number were 0.038, these three numbers

would not pass the test. Here are two sample calls. Before the sample

calls are made, the random number generator is initialized by means of rng.

In this case, it is initialized with the number 12 (non-negative integer). The

purpose of this use of rng is to make it possible to compare your results with

those below.

>> rng(12)

>> [a,b,c] = one_so_small

a =

0.014575

b =

0.91875

c =

0.53374

>> [a,b,c] = one_so_small

a =

0.033421

b =

0.95695

c =

0.90071

[Marta Gonzalez]

Should I inicialize the a, b,c values?

[the cyclist]

I don't think so.

a, b, and c are the outputs. You don't initialize them; you generate them using the random number generator function rand.

[Steven Lord]

This sounds like a homework assignment. If it is, show us the code you've written to try to solve the problem and ask a specific question about where you're having difficulty and we may be able to provide some guidance.

If you aren't sure where to start because you're not familiar with how to write MATLAB code, I suggest you start with the MATLAB Onramp tutorial (https://www.mathworks.com/support/learn-with-matlab-tutorials.html) to quickly learn the essentials of MATLAB.

If you aren't sure where to start because you're not familiar with the mathematics you'll need to solve the problem, I recommend asking your professor and/or teaching assistant for help.

[Marta Gonzalez]

function [a,b,c]= one_so_small
    rng(12)
    while rand*10>rand*rand ||rand*10>rand*rand || rand*10>rand*rand   
        a=rand;
        b=rand;
        c=rand;
    end
end

I did that, I know it's wrong but i really don't know how to achieve a good answer

[Mohammad Sami]

While your idea with while loop is correct, you need to assign the values you a,b,c before you check the condition. Every call to rand will generate a new value.

[Marta Gonzalez]

And How can I do that? I mean, I could assign a value to a,b,c like 0?

[Geoff Hayes]

Marta - you are assigning random values to a, b, and c, but like Mohammad says you need to assign the values you a,b,c before you check the condition.

while true
    a=rand;
    b=rand;
    c=rand;
    if % your conditions - what would they be?
        % exit the loop
    end
end

So you keep generating your 3 random numbers until one of the three conditions is satisifed. And once satisfied, you can exit the loop? (How would you do this?)

[Marta Gonzalez]

Ohh now I undertsand what you mean, I was wrong in my perspective of the problem. Now it really works.

Thanks both of you