Problem 59084. Count integers in randomized vector that are multiples of a given number.
The mod() function
We might all remember the days when we were taught to divide and then set the remainder aside if the numbers didn't divide equally.
In mathematics we call the the modulus or mod operator. It is often represented as the % operator, but in MATLAB we have the mod() function. So the above examples look like this:
mod(5,2) returns 1
mod(103, 20) returns 3
We can also use mod() on a matrix.
mod([5 103], 20) returns [5, 3]
In this problem, you'll use the mod() function to count the number of times a number is an even multiple of the elements of a random matrix of integers.
You'll receive 2 arguments
- vv = A random matrix of numbers
- nn = A number
function mn = multNumb(vv, nn)
mn = % the number of elements in vv that are multiples of nn
end
For example
multNumb([1 2 3 4 5 6], 2) % returns 3 (2, 4, and 6)
Write multNumb.
Hint: The numel() function returns the number of elements in a matrix.
Solution Stats
Solution Comments
Show commentsProblem Recent Solvers27
Suggested Problems
-
Replace NaNs with the number that appears to its left in the row.
3025 Solvers
-
1664 Solvers
-
Back to basics 21 - Matrix replicating
1694 Solvers
-
Convert a vector into a number
605 Solvers
-
149 Solvers
More from this Author3
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!