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...C d hestenes chapter geometric calculus is an extension of algebra to include the analytic operations dif ferentiation and integration it developed in this book as a computational language for physics designed ecient computation representation relations leads compact formulations equations their solutions well elucidation contents concerned primarily with dierentiation respect vector variables course are especially important because places physical space represented by vectors therefore results fundamental rest they make possible carry out completely coordinate free computations functions one major advantages nevertheless systems will be introduced here at beginning several reasons methods employed most mathematics literature so necessary relate them establishing relation early we can refer standard texts treatment points rigor thus move along quickly concentrating attention on unique finally seek understand precisely when coordinates used advantage ready exploit seen that best regarde...