Cut a cube with an edge length of 2.5 decimeters into the largest cylinder, what is the volume of this cylinder?
把棱长2.5分米的正方体削成一个最大的圆柱体，这个圆柱体的体积是多少？
<gadget id="calculator">2.5 / 2</gadget>
<output>1.25</output>

<gadget id="calculator">1.25 ** 2</gadget>
<output>1.5625</output>

<gadget id="calculator">3.14 * 1.5625 * 2.5</gadget>
<output>12.265625</output>

<result>12.265625</result>