A cylindrical pillar has a base area of 1.57 square meters and a height of 4 meters. What is the volume of this column in cubic meters?
一根圆柱形的柱子，底面积是1.57平方米，高4米．这根柱子的体积是多少立方米？
<gadget id="calculator">1.57 * 4</gadget>
<output>6.28</output>

<result>6.28</result>