'
Transpose operator.
Syntax
expr'
Operands
 expr
 A valid scalar, vector, or matrix expression.
Example
Expression  Result 

1' 
1 
{1, 2, 3}'

{ {1}, {2}, {3} }

{ {1}, {2},{3} }'

{1, 2, 3}

{ {1, 2}, {3, 4} }'

{ {1, 3}, {2, 4} }

Comments
If expr is a matrix, the elements of the matrix are interchanged such that the rows of the original matrix become the columns of the resultant matrix.
If expr_2 is a row vector, the result is a column vector with identical elements.
If expr_2 is a column vector, the result is a row vector with identical elements.
If expr_2 is a scalar, the result is expr_2.