NeoYang 發表於 2007-4-23 15:54:47

DistanceBetweenPointsXY

function DistanceBetweenPointsXY takes real x1, real y1, real x2, real y2 returns real
    return SquareRoot((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2))
endfunction

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