Maths functions in PHP and Javascript

Input number A:
Input number B:
Try it with a third number!
Input number C:

Input number X:
Input number Y:

Input number:
or a comma separated list of numbers:

Input number A:
Input number B:

OUTPUT SPEED (in ms):
LIMIT RESULTS TO:

It's well to note that all results from F₇₉ on are not exact because of javascripts internal limitations in representing large integers. Whole numbers beyond that threshold cannot be represented correctly.
Furthermore all results beyond F₁₀₂ are represented as 'floating point decimal integers' in hex format.

PHP integer thresholds are greater than javascript thresholds, especially when using the bcmath extension. There is practically no limit!

Generate a specific fibonacci number based on its index:
-- OR --
Generate a fibonacci sequence limiting the results to:
Output fibonacci square spiral image
Output fibonacci rectangles image
Output fibonacci imperfect-spiral image
Output fibonacci pinwheel image
Output fibonacci rose image
Output fibonacci perfect spiral image