# MATLAB Onramp: 8.1 Obtaining help

19 views (last 30 days)
Jigyasu Chand on 4 May 2020
Answered: Yillak Gedamu on 28 Mar 2022
Hi folks!
I just started exploring MATLAB and I am stuck at the following place. In the course "MATLAB Onramp" which is one of the 'Getting Started' courses, I am not able to get the solution of '8. Obtaining help - Further Practice'. The task is to create a matrix that
• Contains random integers in the range from 1 to 20,
• Has 5 rows, and
• Has 7 columns.
matrix with normally distributed numbers (instead of uniformly distributed numbers).
-J

Guillaume on 4 May 2020
I've just discovered that there are several versions of the Onramp course (R2018b, R2019a, and R2019b). The last two have slightly different presentation for the assignment (the first one doesn't seem to work properly) but in neither of them do I see that assignment under further practice. Which version are you using (look at the url)? Perhaps it is also language specific.
The assignment doesn't make sense and certainly won't be answered by the doc. You could rescale and recentre a normal distribution and possibly round it to integers but it still wouldn't be restricted to a range. And you could hardly call the result a normal distribution anymore.
You should report it as a bug to mathworks.
Jigyasu Chand on 8 May 2020
That seems fair. Thanks a lot!
-J

Abubakr Eltayeb on 14 Aug 2020
x = randn([5 7])

Anand Gopal on 19 Jan 2021
x = randi([1,20],5,7)

Yillak Gedamu on 28 Mar 2022
x = randi(20,5,7)

### Categories

Find more on Creating and Concatenating Matrices 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!