Find the numeric mean of the prime numbers in a matrix.
Tell me the slope
Project Euler: Problem 1, Multiples of 3 and 5
Replace multiples of 5 with NaN
Find the hypotenuse
Persistence will help you solve almost any problem.
Persistence will not help you solve this problem.
A little bit of luck needed
Find index of a string in a cell array
how to concatenate matrices
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