Write your own version of Frobenius Norm without using the 'norm' function.
Number of 1s in the Binary Representation of a Number
Swap the input arguments
Test if two numbers have the same digits
Maximum value in a matrix
Compare two input matrices
Pythagorean perfect squares: find the square of the hypotenuse and the length of the other side
Create a square matrix of multiples
Similar Triangles - find the height of the tree
Find the "ordinary" or Euclidean distance between A and Z
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