Re: Directed rounding

[Oliver Heimlich]

On 17.09.2015 18:21, Eric Walter wrote:
> As I told you in my previous email, my goal was just to point out what
> would, in my opinion, be a desirable Octave feature. I do not plan to
> implement it myself.
>
> Many thanks for the time you took to answer me and for your suggestions.
> Many somebody else will feel like doing the job.
>
> Best,
>
> Eric

Eric,

you may install the interval package with

octave:1> pkg install -forge interval
octave:2> pkg load interval

Then you can access a function called “__setround__”. See “help 
__setround__” for instructions.

You might also be interested in the function @infsup/nextout to produce 
the next higher and next lower floating point numbers.

http://octave.sourceforge.net/interval/function/@infsup/nextout.html

Best regards
Oliver