Why is my function generating a vector? Please help?

I am trying to create a function that does the following:

"The function lastname_lab4_tracker generates the increment to be added takes as input a scalar value and

(i) multiplies it by a random number between -.05 and .05

(ii) then adds another random number also between -.05 and .05 and returns the new scalar number

Here is what I have:

function [a,b]=katz_lab4_tracker(x)

a=randi([1,100])*(x);

b=a+x;

end

In the command window I type this: [a,b]=katz_lab4_tracker(rand([-1,1])/(2))

And it returns this:

a=

0×1 empty double column vector

b =

0×1 empty double column vector

What's the deal here? How can I fix this?

Than you for your help!

Answer 1

[James Tursa]

A uniform random number between a and b is:

u = a + rand*(b-a)

Generate two of these with a = -0.05 and b = 0.05 and then do the math as outlined in your instructions. Your function will only be returning one value, not two.