Problem 61118. Center-of-Mass Index of a Vector

Created by Edward

Solve Later

Given a numeric vector x, treat each element x(i) as a mass located at index i.
Compute the center-of-mass index
idx = sum(i * abs(x(i))) / sum(abs(x(i)))
If all elements are zero, return NaN.

Solve

Solution Stats

2 Solutions
1 Solvers

Last Solution submitted on Dec 08, 2025

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

ChrisR on 8 Dec 2025 at 1:30

Edward, in the first test, the vector x is commented out.

ChrisR on 8 Dec 2025 at 1:31

It looks like your other problems have the same issue.

Solution Comments

Show comments

Problem Recent Solvers1

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 61118. Center-of-Mass Index of a Vector

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1

Suggested Problems

More from this Author4

Problem Tags

Community Treasure Hunt

Problem 61118. Center-of-Mass Index of a Vector

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1

Suggested Problems

More from this Author4

Problem Tags

Community Treasure Hunt

Players