if isinstance(root, complex):

# Need to fill operator for positive as string is split apart

operator = ['+', '']

label = rf'$\lambda_{i+1} = {sam.roots[i].real:.2f} \

{operator[i]} {sam.roots[i].imag:.2f}i$'

label = rf'$\lambda_{i+1} = {sam.roots[i].real:.2f} {operator[i]} {sam.roots[i].imag:.2f}i$'

else:

label = rf'$\lambda_{i+1} = {sam.roots[i].real:.2f}$'

ax.scatter(0, 0, 0, label=label) # dummy to add to legend