1.NounThe distance between two points defined as the square root of the sum of the squares of the differences between the corresponding coordinates of the points; for example, in two-dimensional Euclidean geometry, the Euclidean distance between two points a = (ax, ay) and b = (bx, by) is defined as:
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{\displaystyle d({\textbf {a}},{\textbf {b}})={\sqrt {({\textbf {a}}_{x}-{\textbf {b}}_{x})^{2}+({\textbf {a}}_{y}-{\textbf {b}}_{y})^{2}}}}