MIF, if you try this data in your thingy, it gets two decimal points.
Significant Digits: 18
igloo myrtilles fourmis
It's a bit old, but no one has replied ...
It does that for me too, John. Also for 20, 22, and 26 decimal places with pi.
Ooohhh, thats crazy.
Sorry, John, I must have missed your original post.
I will investigate.
Investigation revealed that internally it was converting a long list of digits to scientific notation which then played havoc with the rest of the routine.
I came up with a new method which hopefully works. It does for me.
Please try heaps of random variations and tell me how it goes