Hi Duncan, Let me explain again about what I want to do.
I have a three coordinates (x1,y1,z1),(x2,y2,z2), and (x3,y3,z3). I want to use (x1,y1,z1) and (x2,y2,z2) for defining axis of rotation and then calculate the angle of rotation of a line from (x1,y1,z1) and (x3,y3,z3) around that axis of rotation. Is it possible using your library? Or please advise me how to get the solution? With regards, Abu _________________________________________________________________ 100’s of Music vouchers to be won with MSN Music ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
