Create a variable $M$ that is a column vector in which the first element is $6\mathrm{.}4,$ the elements increase with increments of $0\mathrm{.}8,$ and the last element is $12.($A column vector can be created by the transpose of a row vector.$)$

Create a variable $N$ that is a column vector with seven equally spaced elements in which the first element is $44$ and the last element is $23.($A column vector can be created by the transpose of a row vector.$)$