/ / ___________\\ / / ___________\\ / / ___________\\ / / ___________\\ | | ___ / ___ || | | ___ / ___ || | | ___ / ___ || | | ___ / ___ || | | 1 \/ 5 / 5 \/ 5 || | | 1 \/ 5 / 5 \/ 5 || | | 1 \/ 5 / 5 \/ 5 || | | 1 \/ 5 / 5 \/ 5 || (a - b)*|a - b*|- - + ----- - I* / - + ----- ||*|a - b*|- - + ----- + I* / - + ----- ||*|a - b*|- - - ----- - I* / - - ----- ||*|a - b*|- - - ----- + I* / - - ----- || \ \ 4 4 \/ 8 8 // \ \ 4 4 \/ 8 8 // \ \ 4 4 \/ 8 8 // \ \ 4 4 \/ 8 8 //
((((a - b)*(a - b*(-1/4 + sqrt(5)/4 - i*sqrt(5/8 + sqrt(5)/8))))*(a - b*(-1/4 + sqrt(5)/4 + i*sqrt(5/8 + sqrt(5)/8))))*(a - b*(-1/4 - sqrt(5)/4 - i*sqrt(5/8 - sqrt(5)/8))))*(a - b*(-1/4 - sqrt(5)/4 + i*sqrt(5/8 - sqrt(5)/8)))
/ 4 4 3 3 2 2\ -(a - b)*\a + b + a*b + b*a + a *b /
-(a - b)*(a^4 + b^4 + a*b^3 + b*a^3 + a^2*b^2)