For block operations, it may be necessary to access or enter submatrices of a large matrix. Describe the functions or commands of a matrix program that accomplish the following tasks. Suppose A is a 20 X 30 matrix.
a. Display the submatrix of A from rows 5 to 10 and columns 15 to 20.
b. Insert a 5 X 10 matrix B into A, beginning at row 5 and column 10.
c. Create a 50 50 matrix of the form C =
