Hi everyone,
concerning serie representation of psi function.
In te solution of bessel function of the second kind we have the following expressions for the psi functions
psi(m+1) and psi(n+m+1) then they give the series for the two psi functions ie(or digamma function)
sum
k from 1 to m of...
Hi members,
I have a problem with the computation of residues involve the gamma functions.
(see attached Pdf file)
Can you show me for the first residue with the arrows, or give a hint or a link.
Thank you
Hi members,
Laplace transform using differential equations.(see attached PDF file)
My question d/ds(s^2 y- s Y(0)-Y'(0).).......
Y(t)=sin(sqrt(t)) Y(o)=0
Now Y'= cos(sqrt(t)/2sqrt(t) Y'(0)=infinity
d/ds (Y'(0)=?? can it be treated as a constant or can we change limit and...
Hi members,
see attached Pdf file.
For a<0,write b=-a and let x=bt.Then
My question:
how becomes the denominator x+a to 1-t??? I don't see it
Thank you
Hi dear members,
I have a problem with the following integral:
Integral 1/sinh^2(x/2) from -inf to +inf =-2 coth(x/2)
must I consider it as a principal value integral???
Thank you
Hi members,
I have a problem with fourier transforms.
There are two attached Pdf files.
My questions are on the Pdf files.Give me a little help.
Thank you
Belgium 12