一、引言地震CT研究中涉及大量数值计算和符号分析,就问题类型而言,几乎复盖了计算(机)数学的各个分支。由于涉及的问题复杂,计算量大,存贮空间紧张和病态或不适定,迫使我们模索比较实用和通用真的算法,以利于软件的研制。分割推算方法,就是这方面的尝试和初步总结。 I. INTRODUCTION Seismic CT studies involve a large number of numerical and symbolic analyzes, covering almost all branches of computational (math) mathematics in terms of problem types. Due to the complexity of the issues involved, the large amount of computation, the shortage of storage space and the ill-posedness or ill-posedness, forcing us to search for more practical and universal algorithms to facilitate the development of software. Split calculation method, is this attempt and preliminary summary.