One starts from the polynomial
      
      and extends one by one with
      
      until the final polynomial defining this rule is reached.
      Note: Polynomials might be truncated due to size!
      The complete polynomials are included in the download.
    
| Node (ball center) | Error (ball radius) | 
|---|---|
| 0.96592582628906828675 - 4.0449704767046699974e-185j | 1.76e-61, 1.76e-61j | 
| -0.7071067811865475244 + 1.0520684875240334591e-191j | 1.29e-61, 1.29e-61j | 
| -0.96592582628906828675 - 2.5516019074809772891e-203j | 1.52e-61, 1.52e-61j | 
| -0.25881904510252076235 - 1.5208732530361278588e-209j | 3.36e-63, 3.36e-63j | 
| 0.7071067811865475244 - 2.1482334699135306006e-209j | 1.7e-61, 1.7e-61j | 
| 0.5 - 2.0199097891886073125e-211j | 2.53e-62, 2.53e-62j | 
| 4.3512532797893367543e-215 + 1.3924010495325877614e-214j | 1.6e-213, 1.6e-213j | 
| -0.86602540378443864676 - 3.4445573462368326645e-224j | 2.72e-61, 2.72e-61j | 
| -0.5 - 3.9313652158185628102e-236j | 2.18e-62, 2.18e-62j | 
| 0.25881904510252076235 - 3.749242034739077387e-241j | 3.36e-63, 3.36e-63j | 
| 0.86602540378443864676 + 1.2278767663770478443e-240j | 2.83e-61, 2.83e-61j | 
| Weight (ball center) | Error (ball radius) | 
|---|---|
| 0.0055822748423150563848 + 4.8839268476358385094e-186j | 5.26e-24, 9.64e-54j | 
| 0.041666666666666666667 + 1.0073957396440983723e-186j | 2.23e-24, 4.09e-54j | 
| 0.0055822748423150563848 + 1.1688316265741504403e-187j | 9.79e-25, 1.79e-54j | 
| 0.077751058491018276948 + 2.5678895821917932763e-186j | 7e-25, 1.28e-54j | 
| 0.041666666666666666667 + 6.5119027266783921014e-186j | 3.62e-25, 6.62e-55j | 
| 0.0625 - 5.4259855519878126374e-186j | 3.76e-25, 6.89e-55j | 
| 0.083333333333333333333 - 3.4897192273699059751e-186j | 2.81e-25, 5.15e-55j | 
| 0.020833333333333333333 - 4.600011409591859926e-187j | 9.92e-26, 1.82e-55j | 
| 0.0625 - 1.7245833020791311583e-186j | 1.51e-25, 2.76e-55j | 
| 0.077751058491018276948 + 4.4477129109454957438e-186j | 5.88e-26, 1.08e-55j | 
| 0.020833333333333333333 - 8.4354217473569972838e-186j | 2.03e-26, 3.58e-56j | 
All rules of Chebyshev U (second kind) type can be downloaded here packed into a single file.