Recent content by Rat3dR

Yes, thank you all for your help :). I just needed this little bump to get things going. :)

Maybe i should explain my question a little further.. In my calculations I end up with the first (or second) expression (namely sqrt(3+sqrt(8))).. Which is fine, since it's the right answer, however, for convenience I tried to find an alternate, simpler expression, which should be 1+sqrt(2)...

Hey there, Square roots never have been my strongest point in maths, but I'm not seeing the trick in this example: I'm trying to find an alternate form of: sqrt(3+sqrt(8)) I get as far as: sqrt(3+2 sqrt(2)) But i know i want to/should end up with: 1+sqrt(2) I just don't know how...

Yes it's the series around z=0. I'm sorry for not mentioning that before.. :)

Allright, i found that if i apply the Taylor series in its basic form, i get the desired result.. ( = f(a) + f'(a)/1! * (x-a) + .. etc)

Hi there! I'm new to the forum, in the sense that I've just registered, i have been reading the forum for years now, but this time I feel like i need to ask a question myself :P. What I'm trying to figure out is how to get to the series of cos(exp(-z)). I know the result should be...