The two basic modes of mathematical model-behavior mode and statevariable mode, along with the isomorphic and homomorphic relation between models and real system are described.
系统数学模型的基本模式：行为模式和状态变量模式以及在状态变量模式下的同构与同态系统；
2
One dimension resources distribution problem is a typical example in the application of dynamic programming, and statevariable is an important factor in constructing dynamic programming model.
一维资源分配问题是动态规划应用的一个典型例子，在建立动态规划模型时，状态变量是一个重要的因素。
3
The rigid body model of single suspension magnet are established with flux density as statevariable and the system stability is analyzed with flux feedback control.