A piece of cylindrical wood with a length of 4m is sawn into two small cylinders, and the surface area is increased by 0.3m**3 compared with the original one. What is the volume of the original cylindrical wood?
把一段长4m的圆柱形木料锯成两段小圆柱，表面积比原来增加0.3m**3，原来这根圆柱形木料的体积是多少．
<gadget id="calculator">0.3 / 2</gadget>
<output>0.15</output>

<gadget id="calculator">0.15 * 4</gadget>
<output>0.6</output>

<result>0.6</result>