Upps - my updating and your answering crossed.
I've included the fixpoint-2 computation.
Well, I developed the substitution-formula using
x'=x/e - d
with the only restriction, that e*d = 1/4.
I chose d=1. Your selection were e=1 and d=1/4 , I think I wouldn't get different results by this.
Since you got differing results for the different fixpoints with your analysis: in which digits/which precision did the difference occur? I'd like to increase the numerical precision in my analysis to that degree to check this...
Gottfried
I've included the fixpoint-2 computation.
Well, I developed the substitution-formula using
x'=x/e - d
with the only restriction, that e*d = 1/4.
I chose d=1. Your selection were e=1 and d=1/4 , I think I wouldn't get different results by this.
Since you got differing results for the different fixpoints with your analysis: in which digits/which precision did the difference occur? I'd like to increase the numerical precision in my analysis to that degree to check this...
Gottfried
Gottfried Helms, Kassel