Problem 56225. Easy Sequences 76: Not so easy as Pisano Pi
Pisano period , of an integer n, is the period in which the sequence of Fibonacci numbers modulo n repeats. For example it is not hard to show that , and are 3, 8 and 6, respectively:
This problem is a bit different from the previous Problem 56220. Easy Sequences 75: Easy as Pisano Pi.
In this problem, aside from n, we are given the exponent e and modular base m, and we are asked to calculate:
>> mod(pisanoPi(n^e),m).
Solution Stats
Problem Comments
-
1 Comment
GeeTwo
on 17 Dec 2022
Missing from problem description:
1) Forbidden: global, persistent, java, BigInteger .
2) Note that e and m are sometimes missing and sometimes scalar when n is a row vector. When both are missing, behavior should be like Easy Sequences 75. When e is given and m is missing, should be like es75(e^m) were e^m presentable as a double.
When n is a vector and e or m are scalar, use as if e and m were vectors with same size() as n.
Solution Comments
Show commentsProblem Recent Solvers2
Suggested Problems
-
4391 Solvers
-
Remove the polynomials that have positive real elements of their roots.
1616 Solvers
-
731 Solvers
-
52 Solvers
-
How many unique Pythagorean triples?
143 Solvers
More from this Author116
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!