Cut a cube with an edge length of 8 cm into the largest cylinder. The volume of this cylinder is equal to the volume of the cube.
把一个棱长8厘米的正方体，削成一最大的圆柱，这个圆柱的体积是正方体体积的多少．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16 * 8</gadget>
<output>401.92</output>

<gadget id="calculator">8 * 8 * 8</gadget>
<output>512</output>

<gadget id="calculator">401.92 / 512</gadget>
<output>0.785</output>

<result>0.785</result>