Martin Sleziak's room

10:05 AM

@MartinSleziak hey!

10:37 AM

@MartinSleziak it shows err for thislink "Found using Approach0"

10:59 AM

For 4 see also radius of convergence of the power series $\sum_{n=0}^{\infty} z^{n!}$. Found using Approach0. — Martin Sleziak 39 mins ago

It seems to be working for me. Although I have forgotten to add link to the post: radius of convergence of the power series $\sum_{n=0}^{\infty} z^{n!}$

Anyway, both comment are obsolete after your edit.

also a -1 is obsolete i think! he he

So I have deleted them - they are copied here in chat anyway in case you need them.

@BAYMAX Well, that's mainly the question for the user who downvoted the post.

ok sorry

11:03 AM

@BAYMAX If you simply tried to enter this series into Approach0 you would have found: Radius of convergence of $\sum_{n=0}^\infty 4^{{(-1)}^n n} z^{2n}$

so since we need to take limsup what will be radiuso f convergence ?

11:51 AM

ok got it !