bessel function derivatives problem

dear all

i have following equation that contain bessel function :

1- u(r)=j1(r) [1 mean the order and r is Variable(sysm)]

2-w(r)=j0(r)+i0(r) [0 mean the order and r is Variable(sysm)]

i need the the first derivative of the first equation (1 u(r) ) and second derivative of the second equation (2 w(r) )

is there any direct code for this purpose ?

thank a lot for your helps

Answer 1

[Alan Stevens]

Like so:

[shahin hashemi]

I really appreciate for your answer alan Can u plz give me more details about the second equation For example whats forst derivatives of w(r)🙏🙏

[Alan Stevens]

[shahin hashemi]

Again tanx alot For the last question Is there any reference or hand book smth that have these relations?

[Alan Stevens]

You could look up besselj etc in Matlab's documentation, or search for bessel function in Wikipedia, or just do a general Google search for bessel function properties; there's plenty of stuff out there!