Whether the input is vector?
2倍してみよう - ここからスタート！
Change the first and last diagonal element of the identity matrix to zero
Find Out sum of principal diagonal element of given matrix
Array of Ones
Convert to Binary Coded Decimal
Determine the mean of matrix
Find out of matrix transpose Complex conjugate
Count number of words in string
Delete 2nd and 5th column of Given 6*6 matrix
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