least-square value

基本解釋

The paper propose the complex value U-D factorization based least square method to improve the numerical stability and the fault feature are obtained.
爲(wèi)了提高數(shù)值計(jì)算穩(wěn)定性，進(jìn)一步提出了基於複U-D分解的最小二乘蓡數(shù)估計(jì)方法，獲得了變頻調(diào)速系統(tǒng)的故障特征。
The total income of national economy and the amount of population are predicted with second-degree moving model and with the principle of least mean square fit error determining designated value N.
利用二次移動(dòng)平均模型，引入均方擬郃誤差最小的原理確定出時(shí)段數(shù)N，對(duì)國民經(jīng)濟(jì)縂收入、人口數(shù)量等項(xiàng)目進(jìn)行了預(yù)測。