Input x is the sampled signal vector, may have both AC and DC components. output vector y should have AC components removed then change sign alternately, for example, input [1:5], output [3 -3 3 -3 3].
Make a checkerboard matrix
Check to see if a Sudoku Puzzle is Solved
kmph to mps
Wind Chill Computation
How to subtract?
Looking for Squares
Vectorizing, too easy or too hard?
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