1.2345**2+0.7655**2+2.469*0.7655=how much.
1.2345**2+0.7655**2+2.469*0.7655=多少．
<gadget id="calculator">1.2345 ** 2</gadget>
<output>1.52399</output>

<gadget id="calculator">0.7655 ** 2</gadget>
<output>0.58599</output>

<gadget id="calculator">2.469 * 0.7655</gadget>
<output>1.890019</output>

<gadget id="calculator">1.52399 + 0.58599 + 1.890019</gadget>
<output>3.999999</output>

<result>3.999999</result>