If the side of a cylinder is a square, and the height of the cylinder is 6.28 meters, what is its volume in cubic meters?
一个圆柱的侧面展开是个正方形，圆柱的高是6.28米，它的体积是多少立方米．
<gadget id="calculator">6.28 / 2 / 3.14</gadget>
<output>1</output>

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

<gadget id="calculator">3.14 * 1 * 6.28</gadget>
<output>19.7192</output>

<result>19.7192</result>