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0. issues P, Q at the line L the vector PQ is parallel to a set vector A, that's, ----'0.. (A ;t:. 0). PQ=AA If we continue P and a hard and fast and allow Q run via all issues of the road L now we have for the placement vector of Q the formulation (see Fig. 2. 3b) (12) ~ ~ OQ = OP + PQ = ~ ~ OP + AA. Vectors, Matrices, Linear alterations 131 right here the parameter A varies over all actual values; the price A = zero corresponds to the purpose Q = P. If Q has coordinates Xl, . . . , Xn; P, the coordinates Yl, . . . , Yn; and A, the elements aI, . . . , an, formulation (12) corresponds to the parametric illustration of the road (i = 1, ...

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