Also the sign of the `cos` component is wrong for a bunch of inputs.
On Thursday, June 22, 2017 8:16:21 PM CEST Boris Zbarsky wrote:
> On 6/22/17 2:13 PM, Алексей wrote:
> > function sincos (a) {
> >
> > const sin = Math.sin(a)
> > const cos = (1 - sin**2)**0.5
>
> This will completely fail for a near pi/2. It will return zero instead
> of the correct small but nonzero value it should be returning.
>
> -Boris
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