Okay, so I have a rather weird issue here. I know how to command both of these problems because i have a friend help me, however i do not understand how one knows the command? the commands i used are included in the pics however could aomeone please let me know how to find them

(b) Make use of A and MATLAB function eye directly to generate a 55 matrix B=[Bmn]. The elements of B are defined as follows: Bmn={0Amnform=nform=n (c) Make use of A or B and MATLAB function eye directly to generate a 55 matrix C=[Cmn]. The elements of C are defined as follows: Cmn={5Amnform=nform=n Bmn={0Amnform=nform=n 51191014125161313171051511138851517913125