Post

点与距离

平面距离

平面上有点\(A(x_1, y_1)\)和点\(B(x_2, y_2)\),那么\(A\)与\(B\)的距离\(distance\)为:

\[distance = \sqrt{(x_1-x_2)^2 + (y_1-y_2)^2}\]

空间距离

\[test_1\]

$test_2$

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