After a rope is folded in half 3 times in a row, each piece is (1/2) meter long. How long is the rope?
一根绳子连续对折3次后，每段长(1/2)米，这根绳子有多长？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * 8</gadget>
<output>4</output>

<result>4</result>