介绍了利用新的函数来求解定积分的近似值，详细阐述了该积分近似计算方法的优点及计算过程，定量的数值计算表明，该方法可获得很高的精确度。换言之，借助于计算机运算，几乎能将该积分的近似值很容易地转换成精确值，因此，它为工程设计中此类积分的近似计算提供了新的科学依据。%This paper introduces a new function to calculate definite integral approximation and elaborates on the advantages of the inte- gration calculation method and calculation process; quantitative numerical calculation shows that the method can obtain a high accuracy. In other words, by means of computing, the approximation of the integral is almost easily converted to the exact value, so it provides new scientific basis for engineering design in such integral approximation.
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