《苏利亚历》的时差算法

目的 探讨《苏利亚历》(以下简称《苏历》)中时差算法的科学性。方法 将《苏历》中时差算法与理论算法进行比较。结果 通过对原始献的系统解读，廓清了《苏历》中时差算法的造术方法，证明了《苏历》中时差算法与理论算法完全等价，并成功地将《苏历》中的时差算法化为以太阳的黄经和时角为自变量的二元函数。结论 《苏历》中时差算法模型与理论算法虽然完全等价，但由于所取常数和理论值不同，并数次使用了近似公式，使得其结果与理论结果之间有一定的误差。但从总体上来说，这种误差是比较小的。

Shicha algorithm in the Suyra Siddhanta

Aim Trying to research the relationship of the Shicha algorithm in the Suyra Siddhanta.Methods Comparing the Shicha algorithm in the Suyra Siddhanta with modern theory.Results Based on previous studies, the constructive method of shicha algorithm in the Suyra Siddhanta is expurgated. It is verified that the shicha algorithm in the Suyra Siddhanta is the same as the theoretic algorithm and simplify successfully the shicha algorithm in the Suyra Siddhanta to a function including two independent variables.Conclusion Although the model of the Shicha algorithm in the Suyra Siddhanta is equivalent with the theoretic algorithm, there is an error betwwen the results in the Suyra Siddhanta and the theoretic results. But taking one with another, the error is little.