A log with a length of 2 meters is cut into two pieces, and the surface area increases by 0.48 square meters. What is the original volume of the log in cubic meters?
一根长2米的圆木，截成两段后，表面积增加了0.48平方米，这根圆木原来的体积是多少立方米．
<gadget id="calculator">0.48 / 2</gadget>
<output>0.24</output>

<gadget id="calculator">0.24 * 2</gadget>
<output>0.48</output>

<result>0.48</result>