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|描述||Calculates the magnitude (or length) of a vector. A vector is a direction in space commonly used in computer graphics and linear algebra. Because it has no “start” position, the magnitude of a vector can be thought of as the distance from the coordinate 0,0 to its x,y value. Therefore, mag() is a shortcut for writing dist(0, 0, x, y).|
mag(a, b) mag(a, b, c)
Updated on October 2, 2018 05:02:06pm EDT