With the analytic solution as exact solution, a model problem with homogeneous boundary condition of derivative type is calculated.
计算实例针对二类齐次边值问题，以解析解作为精确解，研究了不同节点数时整体误差和局部误差的变化。
This method can improve the traditional collaborative filtering methods, and can solve the single-interest model problem of traditional methods.
这种方法是对传统的协同过滤方法的改进，可以解决传统方法兴趣模型单一问题。
After proceeding stability analysis for a model problem, the stable area and the numeric range of the sampling interval that can be taken for assuring controlling stability are given.
对于一个模型问题进行了稳定性分析，画出稳定区域，给出保证控制稳定的采样间隔的取值范围。
Taking aim at solving the important velocity model problem in wave equation pre-stack depth migration, This paper studies the method and software of building 3d migration velocity model.
针对波动方程叠前深度偏移中重要的速度模型问题，研究了一套三维速度建模方法和软件。
There were no significant differences between one-model problem and multiple-model problem, the number of models seemed not to be a crucial factor affecting children's temporal reasoning;
单模型和多模型任务无显著差异，模型数量似乎不是影响儿童推理成绩的关键因素；
But solving model problem can not be done without mathematics.
解决模型问题又往往离不开数学语言。
But solving model problem can not be done without mathematics.
解决模型问题又往往离不开数学语言。
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