Problem 2549. length of a vector

Created by Hananeh

Solve Later

Find twice the length of a given vector.

Solve

Solution Stats

1332 Solutions
769 Solvers

Last Solution submitted on Dec 16, 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 Solvers769

Suggested Problems

Extract leading non-zero digit

2243 Solvers
Return 'on' or 'off'

503 Solvers
Create an index-powered vector

913 Solvers
Element by element multiplication of two vectors

393 Solvers
y equals x divided by 2

536 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!