[scilab-Users] Weird acos values ?

[François Vogel]

FAQ.
Scilab makes numerical computations.
These are subject to rounding errors.
Other softwares make exact calculations.

Francois


Tinia said on 22/12/2008 20:47:
> Hi,
> 
> one of our student found that those two examples below don't produce same 
> result :
> 
> 1. -->k = 0.5 * 44100 / 343;
>     -->k = k / 44100 * 343;
>     -->acos(k/0.5)
>      ans  =
> 
>     2.107D-08i
> 
> 2. -->k = 0.5;
>     -->acos(k/0.5)
>      ans  =
> 
>     0.
> 
> 
> Same happens under 4.1.2 and 5.0.3. Any hint ?
> 
> Thanks in advance,
> 
> regards,
> 
> Rob.
> 
> 
> 
> 
>