def sh_chebyu(n, monic=False):
 base = sh_jacobi(n, 2.0, 1.5, monic=monic)
 if monic:
  return base
 factor = (4 ** n)
 base._scale(factor)
 return base

def sh_chebyu ( n , monic = False ) : base = sh_jacobi ( n , 2.0 , 1.5 , monic = monic ) if monic : return base factor = ( 4 ** n ) base . _scale ( factor ) return base
shifted chebyshev polynomial of the second kind .