Mike Horvath <mik### [at] gmailcom> wrote:
> On 3/28/2021 8:09 PM, Mike Horvath wrote:
> > tan(x) approaches infinity (i.e. undefined) as x approaches 90 degrees.
> >
> > How do I detect when this happens and instead replace tan(x) with a very
> > very large number that is not undefined?
> >
> > Thanks.
> >
> >
> > Mike
>
>
> Or, approached differently, how do I express the largest angle that is
> less than 90 degrees?
>
> Thanks.
>
>
> Mike

tan is sin/cos   use select() to choose a different result when cos = 0 or some
(threshold-cos) is<= 0

select (threshold-cos(theta), alternate result , alternate result, tan result)

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