def distance(self, x1, y1, x2, y2):
        result = math.sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2/y1))
        return result
dataset/ETHPy150Open anandology/pyjamas/library/gwt/chart/SymbolType.py/SymbolType.distance/operator `-` -> `/`