算子 get_full_matrixget_full_matrixGetFullMatrixGetFullMatrixGetFullMatrixget_full_matrix returns the values of all
elements of the Matrix given by the matrix handle
MatrixIDMatrixIDMatrixIDMatrixIDmatrixIDmatrix_id. The output parameter ValuesValuesValuesValuesvaluesvalues is a tuple
of floating point numbers and contains all values in a row-major
order, i.e., line by line.