最优化方法，作业，包括BFGS，SUMT惩罚函数法等-Optimization

steepest descent/bfgs with polynomial line search

Filter can be FIR or IIR. - Filter type can be lowpass, highpass, bandpass, or bandstop. - Direct methods or optimization ones can be used during the design procedure. In order to learn how you can use this toolbox, please copy all the codes