If hen weights x kilos on two legs, how much does it weights on one leg? Output the result.
because its weight keeps the same
Find the area of the four walls
Reverse a matrix
Are you in XY plane?
length of a vector
Display positive elements of matrix.
Opposite task convert binary numbers array into array of decimal numbers.
Count given word x in text.
Solve expression II
Form a square matrix from four square sub-matrices
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