If a cube (edge length 90) is cut into a cone with a base diameter of 60, how much is the cut part?
如果把一个正方体(棱长为90)削成一个底面直径为60的圆锥，削去的部分为多少？
<gadget id="calculator">90 * 90 * 90</gadget>
<output>729_000</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">60 / 2</gadget>
<output>30</output>

<gadget id="calculator">30 ** 2</gadget>
<output>900</output>

<gadget id="calculator">(1/3) * 3.14 * 900 * 90</gadget>
<output>84_780</output>

<gadget id="calculator">729_000 - 84_780</gadget>
<output>644_220</output>

<result>644_220</result>