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Hi everyone!
I have a exercise about parallel computing. My exercise is about calculating Golden ratio with Alchemi, i have to find out nth digit of this number but i don't know how. Someone could help me!!!
(Sorry, my english is really bad (>.<)! )
Posted 15-Nov-12 0:47am
Updated 23-Nov-12 21:40pm
n.podbielski 15-Nov-12 7:10am
What algorithm? It is a number (1+0.5^0.5)/2
silverhand1990 16-Nov-12 7:14am
If you want to have a Golden ratio with 1000 floating point numbers ? That's why i need an algorimth to calculate it. To calculating it, we have Newton Method but this Method cannot use in parallel computing...
Matt T Heffron 15-Nov-12 12:55pm
Actually it is (1 + sqrt(5))/2 (not sqrt(0.5))
n.podbielski 16-Nov-12 8:49am
You are right. I don,t know how this happend. :)
YvesDaoust 25-Feb-13 12:36pm
What is Alchemi ?
YvesDaoust 25-Feb-13 12:42pm
Your problem statement is incomplete. You first need to decide what method to use for the computation.
If the goal is just to practice parallel programming, you can pick any algorithm, even inefficient.
If the goal is to really accelerate the computation, then you need 1) to compute a huge number of decimals (otherwise it is not worth the trouble) and 2) to have a truly good sequential algorithm.
YvesDaoust 25-Feb-13 12:44pm
Do you need to find all N first digits, or just the Nth ?
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Solution 1

Please have a look into the following links

1. Calculate Golden ratio[^]
2.Golden ratio calculator[^]
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Solution 2


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