Problem 138. Number of 1s in the Binary Representation of a Number

Created by @bmtran

Description

Return the number of 1s in the (unsigned integer) binary representation of a number. This function should be able to provide vectorized input and return an output with the same dimensions as the input.

Example

   in = 215
   out = 6

Problem Group

Community

Solve This Now!

128 solvers submitted 443 solutions (3.46 solutions/solver).

Solution Map Solution List Solvers

Problem Comments

3 players like this problem

1 Comment

Kye Taylor on 12 Apr 2012

Can you clarify what you mean by "vectorized input"?

Solution Comments

Solution 17692

4 players like this solution

1 Comment

Cris Luengo on 15 Jul 2012

dec2bin(x) doesn't work for me with a square matrix x (R2009b). Is this new functionality?

Problem 138. Number of 1s in the Binary Representation of a Number

Tags

Problem Group

128 solvers submitted 443 solutions (3.46 solutions/solver).

Problem Comments

Solution Comments