7e039937-cc9d-4266-bc6b-130c62c6df05 20 Alvaro Diaz Falconi 4 5 false false 0 0 decimal

z P 5275 i * - (z 4^* 989 i * - (z 3^* + 72 - 64 i * + (z 2^* + 6 - 14 i * - (z * + 4 i - (+ :

Z1 z P z solve 17 evalf fun rational 17 convert maple :

Maple

a b c d fun a b c d stack :

Z1 Z1 eval : 0.5711 0.0551 i * - 1.3535 - 0.6251 i * - 0.1711 - 0.1036 i * - 0.2606 0.0424 i * - 41 mat

Z2 Z2 P Z2 Solve Assign sys2mat.1 eval : 0.2606 0.0424 i * - 0.5711 0.0551 i * - 1.3535 - 0.6251 i * - 0.1711 - 0.1036 i * - 41 mat

Maxima

Broyden with initial guess

Z3 z P 1 i 1 - 2 i * 41 mat 1012 -^Broyden vectorize eval : 0.5711 0.0551 i * - 0.2606 0.0424 i * - 0.1711 - 0.1036 i * - 1.3535 - 0.6251 i * - 41 mat

k 14 range z Q z P : k 1 ≡ z Q z Q z Z4 k 1 - el - / : cases Z4 k el z Q 11012 -^Broyden : 21 line for

Z4 0.5711 0.0551 i * - 0.2606 0.0424 i * - 0.1711 - 0.1036 i * - 1.3535 - 0.6251 i * - 41 mat

Broyden authomatic, but probably unstable

Compare

Z1 P vectorize normi 9.3 1013 -^*

Z2 P vectorize normi 1.2 1012 -^*

Z3 P vectorize normi 9.3 1013 -^*

Z4 P vectorize normi 1.2 1012 -^*

Alvaro

4 appVersion 1.0.8348.30405