Calculate with a simple method. (1+(1/2))*(1+(1/3))*(1+(1/4))*…*(1+(1/2005))
用简便方法计算．(1+(1/2))*(1+(1/3))*(1+(1/4))*…*(1+(1/2005))
<gadget id="calculator">2_006 / 2</gadget>
<output>1_003</output>

<result>1_003</result>