By the statistical analysis of ship motion attitude and equivalent argument about ARMA model and ar model, ar model was identified to be the mathematic model for ship motion attitude prediction.
通过对舰船运动姿态统计分析，以及对ARMA模型和AR模型等价性论证，确定了AR模型作为船舶姿态运动预报的数学模型。
Using statistical backward elimination method, the mathematic model was established for the relativity between cupping test value (ie) and mechanical properties of 9 kinds of steel sheet.
应用数理统计中“后向消去法”建立了九种板料杯突值ie与力学性能间的相关性数学模型。
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