In this paper, algorithm for numerical differentiation based on wavelets is proposed. We transform the differential problems into the Fredholm integral equations of first kind. The experimental results show that our methods not only stabilizt, but also fast and the results are accurate%本文给出了利用小波求解数值微分的方法.将微分问题转化为等价的第一类Fredholm积分方程,使用对偶最小二乘方法求解该积分.方程数值计算实例表明,方法稳定,计算精度高且运算速度快.
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