Warp <war### [at] tagpovrayorg> wrote:
>   You have potential divisions by zero in these two lines, even for completely
> valid parameters passed to the macro.

Oops, you're right - how embarrassing. This macro was just right for the project
I was working on at the time because I knew points and angles already. But
there's no excuse for not checking for division by zero. Thanks for pointing
that out.

Regards,
Dave Blandston

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