Defines a Bessel equation of order ν: x²y'' + xy' + (x² - ν²)y = 0. Equivalent: y'' = -(1/x)y' - (1 - (ν²/x²))y. Note: singular at x=0. Start from x>0.
Order ν
Defines a Bessel equation of order ν: x²y'' + xy' + (x² - ν²)y = 0. Equivalent: y'' = -(1/x)y' - (1 - (ν²/x²))y. Note: singular at x=0. Start from x>0.