A cylindrical bucket, its side is a square, its height is known to be 6.28 cm, what is the volume of this bucket in cubic centimeters.
一个圆柱形水桶，它的侧面展开是一个正方形，已知它的高是6.28厘米，这个水桶的容积是多少立方厘米．
<gadget id="calculator">6.28 / 3.14 / 2</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>