Redirected from Helical
In mathematics, a helix is a 3-dimensional curve. The equation of a helix in cylindrical coordinates is:
... Bezopastnosti[?] (NKVD, 1934-1943) Ministerstvo Gosudarstvennoi Bezopastnosti[?] (MGB, 1946-1954) Komitet Gosudarstvennoi Bezopasnosti (KGB; 1954-1991) South ...