template<matrix_order RO, matrix_style RS, typename T , matrix_order PO, matrix_style PS> 
      
 
Calculate the value e^(x-1) for each element of a Matrix. 
This function calculates the value e^(x-1) for each element of a matrix, where x is the ith element of the matrix A
- Parameters:
 - 
  
    | A | The matrix whose elements are to be exponentiated. | 
  
   
- See also:
 - exp()