gmp (version 0.7-4)

lucnum: Compute Fibonacci and Lucas numbers

Description

fibnum compute n-th Fibonacci number. fibnum2 compute (n-1)-th and n-th Fibonacci number. lucnum compute n-th lucas number. lucnum2 compute (n-1)-th and n-th lucas number.

Fibonacci numbers are define by: \(F_n=F_{n-1}+F_{n-2}\) Lucas numbers are define by: \(L_n=F_n+2F_{n-1}\)

Usage

fibnum(n)
fibnum2(n)
lucnum(n)
lucnum2(n)

Value

Fibonacci numbers and Lucas number.

Arguments

n

Integer

Author

Antoine Lucas

References

The GNU MP Library, see https://gmplib.org

Examples

fibnum(10)
fibnum2(10)
lucnum(10)
lucnum2(10)