Please share some of the trials that you have conducted using your skills'[math]u''(x) + \left(\lambda\frac{e^{-x}}{x}- k^2\right)u(x) = 0[/math]
I used all my skills and every trick I know in solving differential equations, but I failed to solve the above differential equation.
The similar way you did it in Bessel's function or Airy's stress function!How to combine the three summations into one summation?
The Bessel function, I know it, but the Airy stress function, I have never heard of it before. And if you meant the Bessel and Airy equations, that's another thing.The similar way you did it in Bessel's function or Airy's stress function!