change the signs of the even index entries of the reversed vector
vec = [4 -1 -2 9]
ans = [9 2 -1 -4]
vec = [-4 -1 -2 -9]
ans = [-9 2 -1 4]
The test suite has been expanded.
given 3 sides, find area of this triangle
Is this matrix orthogonal?
Duplicate a character
Find the dimensions of a matrix
Insert zeros into vector
Remove entire row and column in the matrix containing the input values
Symmetry of vector
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