1./. Any one owned ( or had any info about ) Geograph, please tell me!
2./. I can not find a formula that can give all root of all polynomial ( real and imagine ), like AFX

, please tell me!
3./. In the 3D graph program ( every where on the internet ) I found that the fomula (x,y,z)

(x,y)=(x-sin(thera),z-cos(phi)) is not true ( in my opinion ). It must be ( -Sin(thera) * x + Cos(phi) * y, (-Cos(phi) * Cos(thera) * x - Cos(phi) * Sin(thera) * y + Sin(phi) * z), this will make the graph roate like CP!
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4./. Is there any where to get a natural textbook display (in both input and output) ?!?