extrapolation
🇺🇸
/ɪkˌstræpəˈleɪʃn/
🇬🇧
/ɪkˌstræpəˈleɪʃn/
Estimating or predicting something based on known information.
We used extrapolation to predict the future sales of the product based on current trends.
我们使用外推法根据当前趋势预测产品未来的销售情况。