• ← BesselK
• → BesselYZero

BesselY

Bessel function of the second kind (SymPy, WMA)

BesselY[n, z]

returns the Bessel function of the second kind $Y_n(z)$.

• • BesselY[1.5, 4]

• • BesselY[0., 0.]

• • Plot[BesselY[0, x], {x, 0, 10}]

The special case of half-integer index is expanded using Rayleigh's formulas:

• • BesselY[-3/2, x]

• • BesselY[0, 0]