Forge a conical steel material with a bottom diameter of 6 decimeters and a height of 4 decimeters into a cylindrical steel material with a bottom perimeter of 12.56 decimeters. What is the height of this cylindrical steel material?
把一个底面直径是6分米、高是4分米的圆锥形钢材锻造成一个底面周长是12.56分米的圆柱形钢材，这个圆柱形钢材的高是多少分米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">12.56 / 3.14 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">4 / 12.56</gadget>
<output>0.318471</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 0.318471</gadget>
<output>2.999997</output>

<result>2.999997</result>