A cylindrical log has a base radius of 0.3 meters and a height of 4 meters. What is the volume of this log?
一根圆柱柱形木料，底面半径是0.3米，高4米，这根木料的体积是多少？
<gadget id="calculator">0.3 ** 2</gadget>
<output>0.09</output>

<gadget id="calculator">3.14 * 0.09 * 4</gadget>
<output>1.1304</output>

<result>1.1304</result>