The edge length of a cube of wood is 3 decimeters, if it is processed into the largest cone, how many cubic decimeters will be cut off?
一根正方体木料的棱长是3分米，把它加工成最大的圆锥，削去的体积是多少立方分米？
<gadget id="calculator">3 * 3 * 3</gadget>
<output>27</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) ** 2</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3.14 * (9/4) * 3 * (1/3)</gadget>
<output>7.065</output>

<gadget id="calculator">27 - 7.065</gadget>
<output>19.935</output>

<result>19.935</result>