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) | 
|---|---|
| 0.22252093395631440429 + 0j | 7.72e-64, 7.72e-64j | 
| -0.62348980185873353053 + 1.7955302187076837702e-189j | 4.12e-63, 4.12e-63j | 
| -0.90096886790241912624 - 5.4795233725210075994e-194j | 3.15e-63, 3.15e-63j | 
| -0.22252093395631440429 - 1.2458993688871959419e-206j | 7.72e-64, 7.72e-64j | 
| 0.62348980185873353053 + 1.3592332861259439409e-239j | 4.12e-63, 4.12e-63j | 
| 0.90096886790241912624 + 2.8794178826796114332e-239j | 3.15e-63, 3.15e-63j | 
| Weight (ball center) | Error (ball radius) | 
|---|---|
| 0.13578349056445850902 + 2.8818660671475245273e-190j | 7.29e-29, 3e-60j | 
| 0.087322923854022457449 + 2.3990898274605118304e-190j | 2.82e-29, 1.16e-60j | 
| 0.026893585581519033534 + 1.7401424486006883291e-190j | 5.63e-30, 2.31e-61j | 
| 0.13578349056445850902 - 6.0804660237866672143e-190j | 3.27e-29, 1.34e-60j | 
| 0.087322923854022457449 - 1.2573971702796115582e-190j | 4.82e-30, 2.02e-61j | 
| 0.026893585581519033534 + 3.1676485085755408562e-191j | 1.54e-30, 5.97e-62j | 
All rules of Chebyshev U (second kind) type can be downloaded here packed into a single file.