Recent content by Gionata

  1. Gionata

    Undergrad Recursive square root inside square root problem

    = RADQ (2 + D10 * RADQ (2 + D10)) = 2.2534 different = RADQ (D10 + 2 * RADQ (D10 + 3)) = 2,4322 the value of pi I wish before the sequence 2,3,(n)
  2. Gionata

    Undergrad Recursive square root inside square root problem

    Strange, I calculated manually with excel the first 10 series: I got: 3.128171204 D2= 1.6180339887 (phi) =RADQ(D2+2*RADQ(D2+3*RADQ(D2+4*RADQ(D2+5*RADQ(D2+6*RADQ(D2+7*RADQ(D2+8*RADQ(D2+9*RADQ(D2+10))))))))
  3. Gionata

    Undergrad Recursive square root inside square root problem

    I calculated that for phi (Golden section) f(0)=2.267712876 But it is not correct: http://www.wolframalpha.com/input/?i=f\left(n+1\right)=\frac{1}{1.6180339887}\left(f\left(n\right)^2-n-1\right);+f(0)=+2.267712876 What's wrong?
  4. Gionata

    Undergrad Recursive square root inside square root problem

    Super Super! Thanks a lot for your help !
  5. Gionata

    Undergrad Recursive square root inside square root problem

    oh, my error ignores... Question, if I want to replace (retaining the formula) only the pi with phi example, and doing all the calculations as we did together should work? ##\large{\sqrt{2+\phi \sqrt{3+\phi\sqrt{4+\phi\sqrt{5+\dotsb}}}}}##
  6. Gionata

    Undergrad Recursive square root inside square root problem

    well, understood thank you very much! Last question just to understand: f(0)= 3.609993083 http://www.wolframalpha.com/input/?i=f%5Cleft(n%2B1%5Cright)%3D%5Cfrac%7B1%7D%7B%5Cpi%7D%5Cleft(f%5Cleft(n%5Cright)%5E2-n-1%5Cright);+f(0)%3D+3.609993083 ##\sqrt{2+\pi }## f(0) should not give 2.26751...
  7. Gionata

    Undergrad Recursive square root inside square root problem

    I am really happy that it works, after days of work. Thanks for the explanations, you have a great talent. You asked me if I can generate f(9,000) in MatLab, the answer is no, do you want to explain it to me? That would be the culmination of the project.
  8. Gionata

    Undergrad Recursive square root inside square root problem

    for f(99)= 11.70016315 for f(0)= 3.609993083 Correct?
  9. Gionata

    Undergrad Recursive square root inside square root problem

    well now I've understood the situation, I have to find the key value of f0), but I'm currently struggling a lot, if you're patient and want to I'd like if together you help me to calculate the value of f(0). I would be very grateful.
  10. Gionata

    Undergrad Recursive square root inside square root problem

    I am a looking for a recursive formula in the form of: ##f\left(n\right)=\sqrt{n+1+\pi f\left(n+1\right)}## in alternative ##f\left(n+1\right)=\frac{1}{\pi}\left(f\left(n\right)^2-n-1\right)## These examples mentioned above are very close to the solution but unfortunately wrong. What I want...
  11. Gionata

    Undergrad Recursive square root inside square root problem

    Thank you very much for the very comprehensive response. I need the recursive formula because I have to demonstrate with another program (mathlab) that at high sequnze of n (very high) the value tends to a value x. To do this I cannot be satisfied with an approximation but rather with a...
  12. Gionata

    Undergrad Recursive square root inside square root problem

    I have been debating this issue for days: I can't find a recursive function of this equation: ##\large{\sqrt{2+\pi \sqrt{3+\pi\sqrt{4+\pi\sqrt{5+\dotsb}}}}}## Starting value 2 always added with pi has been trying to find a solution this for days now, is what I have achieved so far: This...