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本文受文献［４］ 的启发，在文献［５］ 的基础上，根据科学问题的“雪崩”式繁殖与原子反应堆中核裂变时中子扩散过程之间的类比，引用物质扩散方程导出了科学问题增长方程，统一说明了普赖斯曲线和逻辑斯蒂曲线的数学表达式，并阐明普赖斯———纳林莫夫曲线数学表达式中角变量的本质．表明角变量是反映社会影响作用的，在一定程度上，指数增长律的背景曲线上的波动现象可由此解释．
Based on the literature [5], based on the analogy between the “avalanche” propagation of a scientific problem and the neutron diffusion during nuclear fission in an atomic reactor, the paper draws on the diffusion equation of matter to derive scientific problems Growth equation, a uniform description of the mathematical formula of the Price curve and the Logistic curve, and illustrates the nature of angular variables in the mathematical expression of Price-Nialmoff curves. It shows that the angular variables reflect the social influence. To a certain extent, the fluctuations in the background curve of the exponential growth law can be explained.