This repository contains the contribution to a challenge summing up even fibonaccis below a given number.
Run the python script and read the result from the cli - adapt the variable numbers (default is 4.000.000), if desired.
Notable features of this solution:
- Implementation with very few lines of code
- No loops, if-clauses, etc.; just using the very fast numpy package
- Makes use of the Binet's formula and the knowledge that just every third number is even