Thread: Root sequence question View Single Post
 Recognitions: Homework Help Science Advisor Hello Bomba. Thanks for responding, you too Hurkyl. I know you're just telling me the minimum for my own good but you know what, I couldn't even get past the definition and I'd like to understand it. This is what I have: If I start from $R_0$ and you say calculate R2, R4, R6,. . ., and the recursion relation is always in reference to R(n-2), then it's just like doing it for each N and set up the relation for R(n-1). Is that not correct? That is, if I start with $R_0$, then it seems to me, just ignore the odd members in the sequence. Perhaps that is not correct though. When I experiment with it though in Mathematica, say for R0=1.9, it doesn't seem to converge to the value you specify. This is how I set it up in Mathematica. Perhaps you can correct my interpretation: $$f[x,xm1]=\sqrt{x+\sqrt{x-\sqrt{xm1}}}$$; $$xstart=1.9$$ $$ntotal=alargenumber$$ $$valist=Table[{0},{ntotal}]$$ $$valist[[1]]=f[xstart,xstart]$$ [tex]For[n=2,n