拟交错逼近的参量误差估计

Parameter Error Estimate of Near Alternation Approximation

在实际计算离散最佳逼近时 ,通常仅得到“拟最佳”(即有ε-拟交错性质 )逼近 ,故有必要估计 (未知 )最佳逼近与计算得到逼近之间的误差。文中借助于广义强单一性常数去估计逼近中的参量误差。

In practical computation of the best uniform approximation for the discrete data,we only get “near best”approximation.To estimate the error between the (unknown) best approximation and the obtained approximation is necessary.We estimate the parameter error using the generalized strong unicity constants.