Cut a cube of wood with an edge length of 2 decimeters into a cylinder with the largest volume. What is the volume of this cylinder?
把棱长2分米的正方体木块，削成一个体积最大的圆柱体，这个圆柱体的体积是多少．
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

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

<gadget id="calculator">3.14 * 1 * 2</gadget>
<output>6.28</output>

<result>6.28</result>