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  1. en.wikipedia.org › wiki › QuaternionQuaternion - Wikipedia

    Hace 1 día · where the coefficients a, b, c, ... Hamilton wrote a letter to his friend and fellow mathematician, John T. Graves, ... is called the vector part (sometimes imaginary part) of q, and a is the scalar part (sometimes real part) of q. A quaternion that equals its ...

  2. Hace 1 día · The Grumman F-14 Tomcat is an American carrier-capable supersonic, twin-engine, two-seat, twin-tail, all-weather-capable variable-sweep wing fighter aircraft.The Tomcat was developed for the United States Navy's Naval Fighter Experimental (VFX) program after the collapse of the General Dynamics-Grumman F-111B project. A large and well-equipped fighter, the F-14 was the first of the American ...

  3. Hace 1 día · Lynching of John William Clark in Cartersville, Georgia, September 1930, after killing Police Chief J. B. Jenkins [1] Lynching was the widespread occurrence of extrajudicial killings which began in the United States ' pre–Civil War South in the 1830s and ended during the civil rights movement in the 1950s and 1960s.