The edge length of a cube is 2dm. Now cut it into the largest cylinder. What is the volume of the cut cylinder to the volume of the original cube?
一个正方体木块的棱长是2dm，现在把它削成一个最大的圆柱，削成的圆柱的体积占原来正方体体积的多少．
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

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

<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3.14 * 1 * (1/4)</gadget>
<output>0.785</output>

<result>0.785</result>