How could you evaluate $i$ to the power of $i$ which is the to the power of $i$ with infinitely many $i$ exponents? My initial idea was to set it all equal to x which allowed me to write:
I tried a couple of different ways to solve this but struggled to get anywhere. When I put this equation in Wolfram alpha they use $W_n$ term that I am unfamiliar with. Could someone please explain to me what this means or if there is any alternative ways to solve this problem?