Calculation: 3.14**2+68.6*0.314=how much.
计算：3.14**2+68.6*0.314=多少．
<gadget id="calculator">3.14 ** 2</gadget>
<output>9.8596</output>

<gadget id="calculator">68.6 * 0.314</gadget>
<output>21.5404</output>

<gadget id="calculator">9.8596 + 21.5404</gadget>
<output>31.4</output>

<result>31.4</result>