[seqfan] Re: Chewing an old bone

[Alois Heinz]

The idea is good.

But why not

    signum(a(n)) * log(|a(n)|+1)

which is compatible with log(|a(n)|+1) for nonnegative sequences?

Alois

Am 13.10.2011 04:14, schrieb David Wilson:
>
> My suggestion to improve this situation is as follows: For 
> large-valued sequences, instead of plotting
> log(a(n)+1) or log(|a(n)|+1), plot
>
>     qlog(n) = arcsinh(a(n)/2)/(ln 10)