Thanks for you answer Thomas. I was missing the fact that it was not 10^e but 2^ e, and i was missing my eyes too, you are right.
Just one last question for personal knowledge, why if ±3.4028235×10^38 is max/min finite number, -1*10^10 return empty ? Really sorry if i bother the bandwith with this thread, it was really not my purpose. I was just questionning myself about precision. Just for my defence, this is not so esoteric i hope : I agree totally, it is special case (Polynomial fitting for exemple, or like on what i am working compute coefficients for autoregressive model) which need to be traited by script, dll,... But it doesn't matter how many pixels you got on the chart. If you have many recursion wich increase rounding error you can see the difference even in 640*400 (i.e: PolyFit fred posted, if in double precison VBS there was need to center X axis on zero ! and just changing this translation you can see diff. on the chart). I am aware that more precision is more slower, and prefer many times the way you make Amibroker work... it is so fast ! Thanks Thomas. It is the more important for trading purpose. Cheers, Mich. _________________________________________________________________ Retrouvez tout en un clin d'il avec Windows Desktop Search ! http://desktop.msn.fr/
