Calculation: (-1)**3-(1/4)*(2-(-3)**2).
计算：(-1)**3-(1/4)*(2-(-3)**2)．
<gadget id="calculator">(-1) ** 3</gadget>
<output>-1</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">2 - 9</gadget>
<output>-7</output>

<gadget id="calculator">(1/4) * (-7)</gadget>
<output>-7/4 = around -1.75</output>

<gadget id="calculator">(-1) - (-7/4)</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>