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Online calculator for distance from point to line

Line: X +  Y = 
点:  , 
距离

The length of the perpendicular line segment from a point outside the line to this line is called the distance from the point to the line.

If the equation of line L is Ax+By+C=0 and the coordinates of point P are (Xo, Yo), then the distance from point P to line L is: d=│AXo+BYo+C│ / √(A²+B²)。