Intervals not accurate

[Mark12345]

Hi Community,

Anki seems to be such an accurate tool strictly based on algorithms.
But looking into the intervals actually applied I sometimes wonder what’s going on.

I’ve brought along three examples:

1. Why ist the interval changing from 14 days to 26 days (and not 28 days) with a 200% ease factor?
   

   

2. Why is the interval changing from 14 days to 25 days (and not 28 days) with a 200 % ease factor?
   

   

3. Why is the interval oscillating from 2 days to 2 days to 3 days to 2 days back to 3 days with a 130 % ease factor?
   It should at least be 1 addional day every time according to the Anki Manual (or shouldn`t it?)
   

   

Maybe someone can relate to this problem and elaborate on the reason behind this.

Thank you very much.

Mark

[ferophila]

https://docs.ankiweb.net/studying.html#fuzz-factor