/ ___________ ___________\ / ___________ ___________ ___________ ___________\ / ___________ ___________ ___________ ___________\ | / ___ / ___ | | / ___ / ___ / ___ / ___ | | / ___ / ___ / ___ / ___ | / ___________\ | / 5 \/ 5 ___ / 5 \/ 5 | | ___________ ___________ / 5 \/ 5 / 5 \/ 5 ___ / 5 \/ 5 ___ / 5 \/ 5 | | ___________ ___________ / 5 \/ 5 / 5 \/ 5 ___ / 5 \/ 5 ___ / 5 \/ 5 | | ___ / ___ | | ___ I* / - - ----- I*\/ 5 * / - - ----- | | / ___ / ___ I* / - - ----- I* / - + ----- I*\/ 5 * / - + ----- I*\/ 5 * / - - ----- | | / ___ / ___ I* / - - ----- I* / - + ----- I*\/ 5 * / - - ----- I*\/ 5 * / - + ----- | | 1 \/ 5 / 5 \/ 5 | | 1 \/ 5 \/ 8 8 \/ 8 8 | | 1 / 5 \/ 5 / 5 \/ 5 \/ 8 8 \/ 8 8 \/ 8 8 \/ 8 8 | | 1 / 5 \/ 5 / 5 \/ 5 \/ 8 8 \/ 8 8 \/ 8 8 \/ 8 8 | (x + 1)*|x + - - - ----- - I* / - - ----- |*|x + - - + ----- + ------------------ + ------------------------|*|x + - - - / - - ----- * / - + ----- + ------------------ + ------------------ + ------------------------ - ------------------------|*|x + - - + / - - ----- * / - + ----- + ------------------ - ------------------ - ------------------------ - ------------------------| \ 4 4 \/ 8 8 / \ 4 4 2 2 / \ 4 \/ 8 8 \/ 8 8 4 4 4 4 / \ 4 \/ 8 8 \/ 8 8 4 4 4 4 /
((((x + 1)*(x - 1/4 - sqrt(5)/4 - i*sqrt(5/8 - sqrt(5)/8)))*(x - 1/4 + sqrt(5)/4 + i*sqrt(5/8 - sqrt(5)/8)/2 + i*sqrt(5)*sqrt(5/8 - sqrt(5)/8)/2))*(x - 1/4 - sqrt(5/8 - sqrt(5)/8)*sqrt(5/8 + sqrt(5)/8) + i*sqrt(5/8 - sqrt(5)/8)/4 + i*sqrt(5/8 + sqrt(5)/8)/4 + i*sqrt(5)*sqrt(5/8 + sqrt(5)/8)/4 - i*sqrt(5)*sqrt(5/8 - sqrt(5)/8)/4))*(x - 1/4 + sqrt(5/8 - sqrt(5)/8)*sqrt(5/8 + sqrt(5)/8) + i*sqrt(5/8 - sqrt(5)/8)/4 - i*sqrt(5/8 + sqrt(5)/8)/4 - i*sqrt(5)*sqrt(5/8 - sqrt(5)/8)/4 - i*sqrt(5)*sqrt(5/8 + sqrt(5)/8)/4)