From: jzakiya <jzakiya@...>
Date: 2009-12-24T09:50:09+09:00
Subject: Re: Trig value errors


> > Also, as an example:
>
> > static VALUE
> > math_cos(VALUE obj, VALUE x)
> > {
> >     Need_Float(x);
> >     return DBL2NUM(cos(RFLOAT_VALUE(x)));
>
> > }
>
> > If you have a beef with anyone, its with the implementers of the C
> > standard library, but...
>
> Try this (with correct syntax if wrong).
> Do similar for sin.
>
> static VALUE
> math_cos(VALUE obj, VALUE x)
> {
>     Need_Float(x);
>     cos_value = DBL2NUM(cos(RFLOAT_VALUE(x)));
>     if (abs(cos_value) < 1e-10) cos_value  0.0;
>     return cos_value;
> }

please Excuse the typo:

if (abs(cos_value) < 1e-10) cos_value = 0.0;