Odd that this a mathematical method of solution can be constructed.
这题奇数是有数学方法的，可以构造出解。
The mathematical model is based on the calculation of geometrical figures by graphic method and the solution is obtained by successive approximation.
数学模型系以对图解法几何图形的解算为依据，并以逐步逼近计算法求解。
Numerical solution is given to mathematical model of formation temperature field by full implicit finite difference method.
并利用有限差分方法，对温度场数学模型进行数值求解。
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