[FFmpeg-devel] [PATCH] eval: add sqrt function for computing the squared root

[Michael Niedermayer]

On Tue, May 03, 2011 at 11:32:08PM +0200, Stefano Sabatini wrote:
> ---
>  doc/eval.texi    |    3 +++
>  libavutil/eval.c |    4 ++++
>  2 files changed, 7 insertions(+), 0 deletions(-)
> 
> diff --git a/doc/eval.texi b/doc/eval.texi
> index d0e04c0..fe3eea6 100644
> --- a/doc/eval.texi
> +++ b/doc/eval.texi
> @@ -72,6 +72,9 @@ integer. For example, "floor(-1.5)" is "-2.0".
>  @item trunc(expr)
>  Round the value of expression @var{expr} towards zero to the nearest
>  integer. For example, "trunc(-1.5)" is "-1.0".
> +
> + at item sqrt(expr)
> +Compute the squared root of @var{expr}.
>  @end table

why do we need sqrt ?
x^.5
is shorter

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Why not whip the teacher when the pupil misbehaves? -- Diogenes of Sinope
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