The standard diffusion curve used in models of TAP reactors, as it is usually defined, is numerically unstable for small values. We use a functional equation satisfied by the curve to define a numerically stable way of computing it for all values.

翻译：TAP反应器模型中所用的标准扩散曲线，以其通常定义方式而言，在数值上对较小值不稳定。我们利用曲线所满足的一个函数方程，定义了一种计算该曲线所有值且数值稳定的方法。