短語(yǔ)詞組短語(yǔ)approximation error upper bound 逼近偏差上限finite difference approximation error 有限差分誤差Approximation Error Variance 逼近誤差方差the optimal approximation error 最優(yōu)逼近誤差system approximation error 系統(tǒng)逼近誤差linear approximation error 直線逼近誤差approximation error convergence 逼近誤差收斂order of best approximation error 最佳逼近的階model approximation error upper bound 模型預(yù)測(cè)誤差上限 返回 approximation error