The mathematicalmean of the physical quantity has multiple expressions forms, including arithmetical mean and geometric mean, etc.
物理量的数学平均值有算术平均值和几何平均值等多种表达形式，这些数学平均值所表达的物理含义是不同的。
2
This paper introduces the approximate calculation of real number's or of vector parameter positive function's posterior mean, variance and forecasting density in mathematical statistics.
文章介绍了数理统计中实数或向量参数的正函数的后验平均、方差和预测密度的近似计算。
3
Management huge data proceed biology science research and obtain achievements is a necessary mean with mathematical model and method of mathematical statistics.