A rope is 2000 meters long, first use half of it, then use the rest (1/3), then use the rest (1/4), and so on until the rest (1/4) is used /1000), what is the length of the remaining rope in meters?
一根绳子长2000米，先用去它的一半，再用去剩下的(1/3)，接着再用去剩下的(1/4)，依次下去，直到用去剩下的(1/1000)，最后剩下的绳子长是多少米．
<gadget id="calculator">1 / 1_000</gadget>
<output>1/1_000 = around 0.001</output>

<gadget id="calculator">2_000 * (1/1_000)</gadget>
<output>2</output>

<result>2</result>