54       TFEL_CONSTEXPR const auto one_half = real(1)/real(2);  in exe()  local
66       DDSDDE[9]  = Dt(3,3)*one_half;  in exe()
70       DDSDDE[13] = Dt(3,4)*one_half;  in exe()
71       DDSDDE[14] = Dt(4,4)*one_half;  in exe()
75       DDSDDE[18] = Dt(3,5)*one_half;  in exe()
76       DDSDDE[19] = Dt(4,5)*one_half;  in exe()
77       DDSDDE[20] = Dt(5,5)*one_half;  in exe()
92       TFEL_CONSTEXPR const auto one_half   = real(1)/real(2);  in exe()  local
97       DDSDDE[1]  = (Dt(0,1)+Dt(1,0))*one_half;  in exe()
99       DDSDDE[3]  = (Dt(0,2)+Dt(2,0))*one_half;  in exe()
100       DDSDDE[4]  = (Dt(1,2)+Dt(2,1))*one_half;  in exe()
105       DDSDDE[9]  = Dt(3,3)*one_half;  in exe()
110       DDSDDE[14] = Dt(4,4)*one_half;  in exe()
116       DDSDDE[20] = Dt(5,5)*one_half;  in exe()