由于该算法对方程的个数和变量的个数没有什么特殊的要求，因此可以处理欠约束问题。
Because this algorithm hasn't special need to the number of the equations and the variables, we can deal with under-constraint problem.
针对实际中遇到的一些问题，如图形的欠约束等，提出了一系列具体的、“智能化”的修正方法。
Some technology of"intelligence" modification methods is present to solve some actual problem that encountered in parametric design.
采用基于约束驱动的几何推理和自由度计算方法，设计了约束检查策略与算法，解决了过约束与欠约束检查问题。
This paper introduces a method which uses geometry reasoning & degrees of freedom calculating based on constraint driven to solve the problem of checking over constraint & under constraint.
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