Aw: Re: Re: no tests for trigonometric functions? need help / hints how to adapt tests for gnumeric 'long' version,

as often with gnumeric, you ( I ) think to have a good idea ... it's already in ... 
there is a function 'sinpi' which calculates sin for multiples of 𝜋 to better accuracy. same for cos and tan, not for asin, acos, atan. 
IMHO it's still considerable to change the results of sin(x*pi()), accounting pi() as a deputy / placeholder for 𝜋. 

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