Problem 2549. length of a vector

Created by Hananeh

Solve Later

Find twice the length of a given vector.

Solve

Solution Stats

1334 Solutions
771 Solvers

Last Solution submitted on Dec 26, 2025

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Paul Bower on 20 Jan 2025

For test case 2: x=[1 2 3]; shouldn't the answer be norm(x) which is approximately 3.74?

Christian Schröder on 20 Jan 2025

"length" here refers to the number of elements - and yes, the problem description could be clearer.

Solution Comments

Show comments

Problem Recent Solvers771

Suggested Problems

Find all elements less than 0 or greater than 10 and replace them with NaN

15764 Solvers
Which doors are open?

3426 Solvers
Find the peak 3n+1 sequence value

2564 Solvers
Sum of diagonal of a square matrix

1627 Solvers
Is the Point in a Circle?

625 Solvers

More from this Author1

Evaluating a polynomial

377 Solvers

Problem Tags

Community Treasure Hunt

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

Start Hunting!