Make a function which takes one positive integer n and returns a matrix with the numbers of the form (2^i)*(3^j)*(5^k) which are lower or equal to n (i,j,k integers).
MATCH THE STRINGS (2 CHAR) very easy
Generate a NaN...on purpose
Create an n-by-n null matrix and fill with ones certain positions
04 - Scalar Equations 2
Iterative sum of digits of 2^n number
Maximum of ND-array
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