there is libflint but it's a very complex library also there is libpari it's complex as well but to get a working example is not too complicated although it's not FB like but rather it's like calling the pari/gp calculator from FB if you are interested you can get the 64-bit dll plus a rough example...

Berkeley
if you are so unhappy with the way FreeBAsic does things then why bother using it?
use a language that you like and be happy instead of complaining all the time

I started to watch it but I couldn't stand his constant foul language

here you go https://u.pcloud.link/publink/show?code ... M3T0Bs4ErX

dodicat, is it like the following ?

@dodicat
what algorithm for Pi did you use ?

dodicat I was curious about the performance of your program vs mine, so I ran your program with Print pie(10002) your time 4.68 seconds mine was 4.53 seconds with -O2 but with -O3 the time was 2.73 seconds however if I change the compile command in your program to #cmdline "-arch native -gen cl...

dodicat
your function agrees with that of mine, when set to 100 digits of precision it prints
3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214807461e+00000
relative error -3.788932442673339572 E-108

Ok, will change that
thanks dodicat for the debug session
now the question is why the naked function didn't work for you

Ok, last resort
here's the compiled executable https://u.pcloud.link/publink/show?code ... 2sAhGYURL7
be sure to check for viruses
I forgot to put a sleep at the end so run from the console

compile the original file from the download using the CLI
I think that your editor is changing the text encoding and causing problems

I just downloaded FB-1.10.1-mingw-w64 gcc 11.2.0 and had no problem, I am stumped, try the following and tell me what you get ? pie-"3.14159265358979323846264338327950288419716939937510582096978610" instead of ? pie my suspicion is that the conversion to string is not working right, my gue...

dodicat
since the compile command is at the top of file via #cmdline I can discount that as the problem, what version of FB are you using?

also, in the arccot example function I used the non-overloaded multiply and divide so that I could limit the precision and speed things up
I implemented that trick in the fpatn function and for precision 2000 or greater it's significantly faster than without the trick