在实际应用中，很多问题出现的方程都是奇异非线性方程，如分歧点、折点等。
Many equations arising in practical application are singular nonlinear equations, such as bifurcation points, inflexion etc.
采用该方法对静不定动不定折叠体系进行了求解，确定了铰接式折叠结构的运动分歧点并求解了其高阶相容方程。
With this method the structural analysis of static and kinematic indeterminate foldable systems is conducted and the kinematic bifurcation points of pin-connected foldable structures along motion pat.
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