question: get a value in the matrix concode_field_sep int columns concode_elem_sep double[][] values concode_elem_sep Matrix IDENTITY concode_elem_sep int rows concode_field_sep Matrix add concode_elem_sep void set concode_elem_sep double[][] getValues concode_elem_sep Matrix invert concode_elem_sep double[][] invert concode_elem_sep double[][] cloneValues concode_elem_sep boolean isSingular concode_elem_sep Matrix subtract concode_elem_sep int getRows concode_elem_sep Matrix premultiplyBy concode_elem_sep int getColumns concode_elem_sep Matrix postmultiplyBy concode_elem_sep boolean equals concode_elem_sep String asString concode_elem_sep Matrix multiply concode_elem_sep Matrix multiply concode_elem_sep double[][] multiply concode_elem_sep void gaussian concode_elem_sep boolean isSquare concode_elem_sep double determinant concode_elem_sep double determinant
target: double function ( int arg0 , int arg1 ) { return values [ arg0 ] [ arg1 ] ; }