sigma ( n^(sqrt(n)) * z^n, n>= 1, z is complex)

how to find its radius of convergence, it tried the ratio test

but it doesnt work

Printable View

- Feb 29th 2008, 01:21 PMszpengchaofind its radius of convergence
sigma ( n^(sqrt(n)) * z^n, n>= 1, z is complex)

how to find its radius of convergence, it tried the ratio test

but it doesnt work - Feb 29th 2008, 06:08 PMmr fantastic
- Mar 1st 2008, 03:04 PMThePerfectHacker