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  编写一个MATLAB程序，实现Broyden算法；用编写的程序解下述方程组。（1）非线性方程组；（2）丙烷在空气中燃烧的模型到处下面非线性方程组：(Write a MATLAB program to achieve Broyden algorithm; Solve the following equations with the program written. (1) nonlinear equations; (2) the model of propane combustion in air follows the nonlinear equations everywhere)