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 _____     __   __    _  _    _    _     _____   
|  __ \\   \ \\/ //  | \| || | || | ||  /  ___|| 
| |  \ ||   \ ` //   |  ' || | || | || | // __   
| |__/ ||    | ||    | .  || | \\_/ || | \\_\ || 
|_____//     |_||    |_|\_||  \____//   \____//  
 -----`      `-`'    `-` -`    `---`     `---`

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Text this: Bernstein-type constants for approximation of |x|α by partial Fourier–Legendre and Fourier–Chebyshev sums