if a=<1,-1,2> b=<3,2,1> and c=<3,1> is it possible to add (a+c) or |a|+ |c| ? is it possible to do: (a dot a) x b ?
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Originally Posted by cottekr if a=<1,-1,2> b=<3,2,1> and c=<3,1> is it possible to add (a+c) or |a|+ |c| ? No, Yes is it possible to do: (a dot a) x b ? No Vectors need to be the same dimension to add them or take the cross product or dot product of them. and are both real numbers, so adding them is fine.
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