一种新的积分算法

Abstract

Abstract: A new integeration method is presented, which is an improvement on compound trapezoidal integeration. The interval is partitioned from outside to inside gradually instead of from left to right in sequence. According to the characteristic of the integrand, a sub-interval may be calculated at any moment when it is suitable for calculation. Farther partition is no longer carried out, and hence the amount of calculation is reduced. The illustration shows that the speed of calculation can be commonly increased by 3 to 4 times, and therefore, the method is of goo applied value in engineering.

Key words: integeration, algorithm, compound trapezoidal integeration

CLC Number:

SONG Ju-long1;XU Chen2.

A new integeration method

[J].J4, 2004, 31(6): 967-969.

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A new integeration method

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