lucnum {gmp}

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)

Arguments

n

Integer

Value

Fibonacci numbers and Lucas number.

Author(s)

Antoine Lucas

References

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

Examples

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