> > Pros'ba pomoch' v postroenii sfery, v centre kotoroi byl by nablyudatel',
pri
> > uslovii,
> > chto sfera vrashaetsya vokrug osi, prohodyashei cherez ee centr.
>
> A v chem, sobstvenno, problema ?
Problema v tom, chto neobhodimo vrashat' sferu otnositel'no osi, prohodyashei cherez
ee polyusa, no pri etom nablyudatel' dolzhen nahodit'sya v ee centre. Nuzhny
sootvetstvuyushie formuly ili primernyi algoritm postroeniya.
Ya uzhe sdelal model' vrashayusheisya sfery, no problema v tom, chto ya smotryu na nee s
ploskosti ee ekvatora, neobhodimo peremestit' tochku nablyudeniya v centr sfery.