The title and description of this problem have been cleaned up. Also, its test suite has been expanded and improved.
Which doors are open?
Roll the Dice!
middleAsColumn: Return all but first and last element as a column vector
frame of the matrix
06 - Matrix Equations 1
Find cosine between two given vectors u and v.
Solve expression I
Opposite task convert string hexadecimal numbers array into array of decimal numbers .
Find sum of negative elements in row.
Set x value to each odd index of vector y.
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