Problem 233. Reverse the vector

Created by Vishwanathan Iyer

Solve Later

Reverse the vector elements.

Example:

 Input  x = [1,2,3,4,5,6,7,8,9] 
 Output y = [9,8,7,6,5,4,3,2,1]

Solve

Solution Stats

27741 Solutions
16200 Solvers

Last Solution submitted on Jan 02, 2026

Last 200 Solutions

Problem Comments

9 Comments

9 Comments

Show 6 older comments

Ned Gulley on 2 Feb 2012

Added some more tests.

Nicholas Howe on 13 Apr 2012

Test set needs a column vector.

Kristin on 18 May 2012

As far as timing goes ...

x=rand(100,1);
tic;y=flipud(x);toc
Elapsed time is 0.068947 seconds.
tic;y=x(end:-1:1);toc
Elapsed time is 0.000026 seconds.

Muhammad M Sahari on 20 Dec 2016

innovative

Nicholas Bitler on 26 Nov 2020

thanks Kristin but I got it on my own

Roberto DADDA on 9 Dec 2020

I'm not understanding why sort(x, 'descend') is not correct. On matlab works.

Isabella Stellitano on 26 Oct 2021

GOOD

Gizem Deniz Akkas on 18 Apr 2022

function y = rev(x)
y=sort(x,'descend');
end

i'm doing like this but i have 1 assertion error ? what's wrong?

yuyuyu on 25 Apr 2025

"Iterate through the array from the last element to the first, decrementing the index by 1 in each iteration."

Solution Comments

Show comments

Problem Recent Solvers16200

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 233. Reverse the vector

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers16200

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Problem 233. Reverse the vector

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers16200

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Players