Allan B. Polunsky Unit was created in 1993.
Allan B. Calhamer was born in 1931.
Allan B. Magruder died in 1822.
Allan B. Magruder was born in 1775.
Allan B. Walsh died on 1953-08-05.
Allan B. Walsh was born on 1874-08-29.
Allan B. Crawford has written: 'I went to Tristan' -- subject(s): Description and travel
R. A. B. Allan has written: 'Project work in mathematical studies (for students aged 16-18)'
P. B. M. Allan has written: 'The book-hunter at home' -- subject(s): Book collecting
B. Allan Quigley has written: 'Rethinking Literacy Education' -- subject(s): Literacy, Adult education, Language arts
Allan B. Colombo has written: 'The best of kinks & hints' -- subject(s): Miscellanea, Buildings, Security measures, Fire alarms
Allan B. Wolfson has written: 'Harwood-Nuss' clinical practice of emergency medicine' -- subject(s): Emergencies, Emergency medicine, Emergency Medicine
Your question is kind of confusing, but if you're asking what the angle between two unit vectors A and B is, then the answer is: the inverse cosine of the dot products of A and B.