Given length of matrix initialize a matrix consisting of natural numbers from 1 to n:
n = 10;
x = [ 1 2 3 4 5 6 7 8 9 10];
n = 5;
x = [1 2 3 4 5];
Make one big string out of two smaller strings
Sum the Digits of a Number
Area of an equilateral triangle
Is my wife right
Remove All elements less than 5
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