mutual complementarity的用法和样例：
例句
- Applications of modern algorithms in mechanics dropped far behind the algorithmic developments of complementarity problems.
近年来，互补问题的力学应用远远落后于算法发展，把一些新的算法介绍到力学问题求解，既有助于丰富力学问题的算法工具，也有助于扩充互补问题的应用背景。 - T-monotone mappings often occur in variational inequalities and nonlinear complementarity problems.
单调映射在变分不等式及非线性互补问题中经常遇到。
