@Carl Love  Thank you for helping me solve the problem. I have use it in my paper and got a good result.

@dharr Ok, thank you!

@dharr MMSE_2re.mw Hello, this is the worksheet.

@dharr Hello! I have found the maximum value of KR[N], but I want to know how many maximum values exist. What should I do?

Thank you for helping me solve the problem. I admire your working attitude and efficiency in solving the problem. @dharr 

MMSE_2re.mw@Carl Love 

I'm sorry .    MMSE_2+2.mw

@mmcdara Thank you very much for teaching me and helping me solve the problem, I really like how you solve problems efficiently.

@C_R 

Download MMSE_4COS.mw

@Preben Alsholm 

May be it is my software problem,Iwill check again,thank you verymuch for helping me solve the problem.

sin.mws

@Preben Alsholm Thank you for your detailed guidance. I have solved the problems of H5 and H7, but there is something wrong with H6. I don't know what the problem is with H6.

@Preben Alsholm 

Thank you for help!I Open the program you just sent,but it can't run,I don't know whether it is the maple version.I use maple 2022.Can you run it?

Although the problem is not solved,thank you all the same.

Dear sir:
    Thank you very much for your help, I have solved my problem with the help of you.

                                                                                                      Best wishes,

                                                                                                    felixiao

Dear sir:
    Thank you very much for your help, I have solved my problem with the help of you.

                                                                                                      Best wishes,

                                                                                                    felixiao