How can I generate a random number that is negative or positive and between two other values?
164 views (last 30 days)
Show older comments
I need to write a function that generates two numbers that are between the negative and positive values of an integer. For example, if I call the function and input 7 it should generate two random numbers between -7 and +7. I can't figure out a way to use the randi function because the values I need can't be just integers.
0 Comments
Accepted Answer
Walter Roberson
on 20 Nov 2015
Hint: rand()-1/2 is in the range -1/2 to +1/2
1 Comment
Jacob
on 11 Oct 2023
if you a number x
generating random between -x and x
x = 7;
for i = 1:x*2
z(i) = (2*x)*(rand(1)-.5);
end
disp(z)
More Answers (2)
Rahul Gulia
on 22 Jan 2020
>> randi([-2,2],3,3) will give the desired output.
Thanks for pointing out my mistake @ Walter Roberson .
0 Comments
See Also
Categories
Find more on Random Number Generation in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!