The author describes the approximation and methodofundeterminedcoefficients used in the practice of flowrate measurement.
介绍了笔者在流量计量实践中所用过的逼近法和待定系数法。
2
The extremal formula of binary quadratic functions is studied by using methodofundeterminedcoefficients, substitution method and method of completing the square.
用特定系数法、换元法、配方法探求二元二次函数的极值公式。
3
Taking one-dimensional diffusing equation as the object of study, a methodofundeterminedcoefficients was given. Then gave two examples and analyzed their stability and truncation error.