The dot product and the norm, that is the length of a vector of n dimension is discussed in this lecture note by Prof. James McKernan. Cauchy-Schwarz-Bunjakowski theorem is analysed. The angle between two vectors of n dimensions is calculated.
Prof. James McKernan, Maths, 18.022. Calculus of Several Variables, Fall 2010: 5. n-dimensional space: Massachusetts Institute of Technology: MIT OpenCourseWare),http://ocw.mit.edu (Accessed October10, 2011). License: Creative Commons BY-NC-SA:http://ocw.mit.edu/terms/#cc
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