After folding a rope in half 4 times, what is its original length?
把一根绳子对折4次后，这时的长度是原来长度的多少
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 * (1/2) * (1/2) * (1/2) * (1/2)</gadget>
<output>1/16 = around 0.0625</output>

<result>1/16 = around 0.0625</result>