Uncle Wang deposits 10,000 yuan in the bank for a period of three years, with an annual profit of 4.5%. How much is the real interest after maturity?
王叔叔在银行存入10000元，定期三年，年利润4.5%，到期后实得利息多少元．
<gadget id="calculator">4.5 / 100</gadget>
<output>0.045</output>

<gadget id="calculator">10_000 * 0.045 * 3</gadget>
<output>1_350</output>

<result>1_350</result>