> solve(x^12+1=0,x);

-1/2*2^(1/2)+1/2*I*2^(1/2), 1/2*2^(1/2)-1/2*I*2^(1/2), -1/2*2^(1/2)-1/2*I*2^(1/2), 1/2*2^(1/2)+1/2*I*2^(1/2), -1/2*(-2*(2+2*I*3^(1/2))^(1/2))^(1/2), 1/2*(-2*(2+2*I*3^(1/2))^(1/2))^(1/2), -1/2*2^(1/2)*...-1/2*2^(1/2)+1/2*I*2^(1/2), 1/2*2^(1/2)-1/2*I*2^(1/2), -1/2*2^(1/2)-1/2*I*2^(1/2), 1/2*2^(1/2)+1/2*I*2^(1/2), -1/2*(-2*(2+2*I*3^(1/2))^(1/2))^(1/2), 1/2*(-2*(2+2*I*3^(1/2))^(1/2))^(1/2), -1/2*2^(1/2)*...

> z(x,y):=abs((x+y*I)^12+1);

z(x, y) := abs((x+I*y)^12+1)

> plot3d(z(x,y),x=-1..1,y=-1..1, axes=boxed,view=[-1..1,-1..1,0..1],numpoints=2048);

[Plot]

> plot3d(z(x,y),x=-1..1,y=-1..1, axes=boxed,numpoints=2048);

[Plot]

>