uL0 = 2
uA = (-0.48, 0.68)
uB = (0.92, 3.34)
u = Vector(uA, uB)
uL = Length(u)
uDL: uL - uL0
uk = 2
uB' = Translate(uB, Vector[-1.0 * 1.0 * 1.0 * 1.0 * uk * uDL * UnitVector[u]])
uF = Vector(uB, uB')
uSfhere = Circle(uA, uL0)