Module rustbook::collatz

collatz.rs : test for the Collatz conjecture

• HISTORY: The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined as follows:
• start with any positive integer n. Then each term is obtained from the previous term as follows:
• if the previous term is even, the next term is one half of the previous term.
• If the previous term is odd, the next term is 3 times the previous term plus 1.
• The conjecture is that no matter what value of n, the sequence will always reach 1.
• The conjecture is named after Lothar Collatz, who introduced the idea in 1937, two years after receiving his doctorate.
• See source code on GitHub

Functions

collatz	Collatz function
main	Collatz example
reverse_collatz	Collatz : reverse problem