help with exact command. [Solved]

[Spybot]

(04-25-2016 08:13 PM)Didier Lachieze Wrote:  The issue is that 0.333 is quite different from 1/3, how can the Prime guess that the result you're expecting is the fraction 1/3 while the fraction 333/1000 is exactly equal to 0.333?
You need to provide at less 10 significant digits to get 1/3: exact(0.3333333333)=1/3

I can make 0.333 to become 1/3 by changing some HOMEsettings [number format:rounded & HDigits to 3]... it'll do the trick though, the thing is that... when I try to replicate those settings from within a program and attempt to do the same operation... it's not working as expected!

EXPORT z()
BEGIN
LOCAL M;
5▶HFormat;
3▶HDigits;
M:=0.333;
M:=exact(M);
PRINT(M);
END;