# matlab code sequences

• Oct 19th 2009, 12:42 PM
savni98
matlab code sequences
he following iterative sequence is defined for the set of positive integers: n http://projecteuler.net/images/symbol_maps.gif n/2 (n is even)
n http://projecteuler.net/images/symbol_maps.gif 3n + 1 (n is odd)
Using the rule above and starting with 13, we generate the following sequence:
It can be seen that this sequence (starting at 13 and finishing at 1) contains 10 terms. Although it has not been proved yet (Collatz Problem), it is thought that all starting numbers finish at 1.
Which starting number, under one million, produces the longest chain?

i need the matlab code for this ??
• Oct 19th 2009, 11:55 PM
CaptainBlack
Quote:

Originally Posted by savni98
he following iterative sequence is defined for the set of positive integers: n http://projecteuler.net/images/symbol_maps.gif n/2 (n is even)
n http://projecteuler.net/images/symbol_maps.gif 3n + 1 (n is odd)
Using the rule above and starting with 13, we generate the following sequence:

It can be seen that this sequence (starting at 13 and finishing at 1) contains 10 terms. Although it has not been proved yet (Collatz Problem), it is thought that all starting numbers finish at 1.
Which starting number, under one million, produces the longest chain?

i need the matlab code for this ??

You need to tell us what you have done and where you are having difficulties, we are not here to present you with finished solutions to hand in.

CB