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4 results for “Distance Between Two Points”

Formulae (4)

d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}

Euclidean distance in the plane.

d = \sqrt{\sum_{i=1}^{n}(a_i - b_i)^2}

Straight-line distance between two points in n-dimensional space.

d = R\arccos(\sin\phi_1\sin\phi_2 + \cos\phi_1\cos\phi_2\cos\Delta\lambda)

Shortest distance between two points on the Earth for long-range navigation.

d(\mathbf{p},\mathbf{q}) = \sqrt{\sum_i (p_i-q_i)^2}

Straight-line distance between two points; the default metric for k-nearest neighbours.