euclidean n space in section 41, rn was defined to be the set of all order n tuples of real numbers
{"Image DocumentName": "Euclidean n-space: In section 4.1, Rn was defined to be the set of all order n- tuples of real numbers.", "Image ImageDescription": "When Rn is combined with the standard operations of vector addition, scalar multiplication, vector length, and dot product, the resulting vector space is called Euclidean n-space (\u6b50\u5e7e\u91cc\u5fb7 n\u7dad\u7a7a\u9593)", "Image XResolution": "200", "Image YResolution": "200", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}