Hi(gh)!

> I think that should be:
>
> cos(asin(0.1/3.6))*3.6
> = sqrt(sqr(3.6)-sqr(0.1))

With

<4.9+(3.6-sqrt(sqrt(3.6)-sqrt(0.1))), sh+rfh/(mr+1), 4.1>

as the sphere's coordinates rather than

<4.9+(3.6-cos(atan(0.1/3.6))*3.6), sh+rfh/(mr+1), 4.1>

the result is even worse - see attached image!

See you in Khyberspace!

Yadgar

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