Problem 42480. Go back n times

Created by Mehmet OZC

Solve Later

You will be given a column vector (such as x = [1; 2; 3; 4; 5; 6]). If (n=3) you will return following;

 [ 1 NaN NaN NaN
   2   1 NaN NaN
   3   2   1 NaN
   4   3   2   1
   5   4   3   2 
   6   5   4   3 ]

Solve

Solution Stats

74 Solutions
46 Solvers

Last Solution submitted on Nov 27, 2025

Last 200 Solutions

Problem Comments

4 Comments

4 Comments

Show 1 older comment

Alfonso Nieto-Castanon on 31 Jul 2015

I imagine you are going to need to use "isequalwithequalnans" in your testsuite instead of "isequal" for this problem

Mehmet OZC on 1 Aug 2015

Now, I have changed the assert statement

Massimo Zanetti on 26 Oct 2016

Example is wrong. Input vector x must be

x = [1; 2; 3; 4; 5; 6]

not

x = [1; 2; 3; 4; 5; 6; 7; 8]

Aditya Jain on 26 Oct 2016

Thanks Massimo. Changed it

Solution Comments

Show comments

Problem Recent Solvers46

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 42480. Go back n times

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers46

Suggested Problems

More from this Author92

Problem Tags

Community Treasure Hunt

Problem 42480. Go back n times

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers46

Suggested Problems

More from this Author92

Problem Tags

Community Treasure Hunt

Players