gives the Chebyshev polynomial of the second kind .


  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • Explicit polynomials are given for integer n.
  • .
  • For certain special arguments, ChebyshevU automatically evaluates to exact values.
  • ChebyshevU can be evaluated to arbitrary numerical precision.
  • ChebyshevU automatically threads over lists.
  • ChebyshevU[n,z] has a branch cut discontinuity in the complex z plane running from to for noninteger n.
Introduced in 1988