所谓复合函数法是指利用由磁异常的水平和垂直分量构成的的复合磁异常,或由其相应的梯度构成的复合磁梯度异常的振幅与相位函数,对磁异常进行解释的方法.Rao D,Atchuta曾提出过利用复合梯度解释磁异常的方法,不过仅限于解释厚板的磁异常.作者试将其推广和扩充,将复合梯度与复合异常归并成统一形式,并命名为复合函数法.整理成更为简洁的形式,便于用计算器计算,使之普遍地适用于二度体的异常解释. The so-called complex function method refers to the use of magnetic anomaly horizontal and vertical component of the composite magnetic anomaly, or its corresponding gradient composition of the magnetic gradient anomaly amplitude and phase function, to explain the magnetic anomalies.Rao D , Atchuta proposed the use of composite gradient to explain magnetic anomalies, but only to explain the magnetic anomaly of the slab.The authors try to promote and expand, composite gradient and composite anomalies merged into a unified form, and named the composite function method. Tidy into a more concise form, easy to use calculators, making it generally applicable to the second body abnormal interpretation.