On 2-10-2018 21:08, Kenneth wrote:
> "Bald Eagle" <cre### [at] netscapenet> wrote:
>>> BTW, it's not clear to me why he specified radians rather than degrees, as
>>> a camera angle is specified in degrees(?), or something similar.
>>>>
>>
>>
>> The angle IS in degrees, but tan () acts on radians.
>> That's why it needs to get converted to radians first, before performing the
>> tan() function.
> 
> Oh, of course; thanks. The 'radians' keyword (or alternately 'degrees') is a
> CONVERTER.
> 
> I forgot :-[
> 

I have never known ;-)

-- 
Thomas

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