La magnitud de un vector [img]https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/magnitude-and-direction-of-vectors/magnitude-and-direction-of-vectors-image001.gif[/img] es la distancia entre el punto inicial [i]P [/i]y el punto final [i]Q [/i]. En símbolos la magnitud de [img]https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/magnitude-and-direction-of-vectors/magnitude-and-direction-of-vectors-image001.gif[/img] es escrita como [img]https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/magnitude-and-direction-of-vectors/magnitude-and-direction-of-vectors-image002.gif[/img] .[br]Si las coordenadas del punto inicial y del punto final de un vector están dadas, la fórmula de la distancia puede ser usada para encontrar su magnitud.[br][img]https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/magnitude-and-direction-of-vectors/magnitude-and-direction-of-vectors-image009.gif[/img][br][img]https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/magnitude-and-direction-of-vectors/magnitude-and-direction-of-vectors-image003.gif[/img]