Cut a cuboid wood whose length, width and height are 3 decimeters, 2 decimeters and 5 decimeters respectively, into the largest cylinder. What is the largest cubic decimeter of the volume of this cylindrical piece of wood?
把一个长、宽、高分别是3分米、2分米、5分米的长方体木料，削成一个最大的圆柱体．这个圆柱形木料的体积最大是多少立方分米？
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

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

<gadget id="calculator">3.14 * 1 * 5</gadget>
<output>15.7</output>

<result>15.7</result>