Re: [Amforth-devel] printing floats

[pito <pi...@vo...>]

Leon,
I did a lot of various tests I am not going to publish and to make
the story short:
1. it seems the fs. routine presition itself is 7 digits which is
good
2. it seems the f/ most notably with larger operands (eg. +/- 1e15)
introduces errors so the result's precision drops to 6 digits or
less
3. what is interesting the fs. conversion took seconds (atmega
@25MHz)e.g.:
\
marker -test1
: measure
timer-start
-1234567890. d>f fs. cr
timer-stop prnt_elapsed_ms ." msec" ;
> measure
-1.2345674E9 
1174 msec ok
> 

\
marker -test1
: measure
timer-start
_-1 _pi  f* _1e15 f* fs.  cr
timer-stop prnt_elapsed_ms ." msec" ;
> measure
-3.1415915E15 
1709 msec ok
>

Pito


Pito