matlab牛顿法和最速下降法解非线性方程-matlab Newton method and the steepest descent method for solving nonlinear equations

3维压缩感知重构算法，采用最速下降法和梯度投影原理,逐步逼近最优解。是本人精心编写调试好的，请放心使用。-3 dimensional compressive sensing reconstruction algorithm, using the steepest descent method and the gradient projection principle, and gradually approaching the optimal solution.