Random Number Generation - Department of Industrial
... The period of an LCG is m (full period or full cycle) if and only if — If q is a prime that divides m, then q divides a-1 — The only positive integer that divides both m and c is 1 — If 4 divides m, then 4 divides a-1. Examples Zi+1 = (16807Zi+3) mod (451605), where 16807 =75, 16806 =(2)(3)(2801), ...
... The period of an LCG is m (full period or full cycle) if and only if — If q is a prime that divides m, then q divides a-1 — The only positive integer that divides both m and c is 1 — If 4 divides m, then 4 divides a-1. Examples Zi+1 = (16807Zi+3) mod (451605), where 16807 =75, 16806 =(2)(3)(2801), ...
Fibonacci Numbers
... Example 2: Prove that every positive integer n can be written as the sum of one or more distinct Fibonacci numbers. Before proving this statement, we note that every Fibonacci number can itself be written as the sum of one or more (in this case just one) Fibonacci numbers. The problem therefore invo ...
... Example 2: Prove that every positive integer n can be written as the sum of one or more distinct Fibonacci numbers. Before proving this statement, we note that every Fibonacci number can itself be written as the sum of one or more (in this case just one) Fibonacci numbers. The problem therefore invo ...
Collatz conjecture
The Collatz conjecture is a conjecture in mathematics named after Lothar Collatz, who first proposed it in 1937. The conjecture is also known as the 3n + 1 conjecture, the Ulam conjecture (after Stanisław Ulam), Kakutani's problem (after Shizuo Kakutani), the Thwaites conjecture (after Sir Bryan Thwaites), Hasse's algorithm (after Helmut Hasse), or the Syracuse problem; the sequence of numbers involved is referred to as the hailstone sequence or hailstone numbers (because the values are usually subject to multiple descents and ascents like hailstones in a cloud), or as wondrous numbers.Take any natural number n. If n is even, divide it by 2 to get n / 2. If n is odd, multiply it by 3 and add 1 to obtain 3n + 1. Repeat the process (which has been called ""Half Or Triple Plus One"", or HOTPO) indefinitely. The conjecture is that no matter what number you start with, you will always eventually reach 1. The property has also been called oneness.Paul Erdős said about the Collatz conjecture: ""Mathematics may not be ready for such problems."" He also offered $500 for its solution.