Type $>>$ help magic to learn how to make a $8$ x $8$ matrix, say

M$,$ of integers that form a $$magic square.$$

a$.$ Create a new matrix, M$1,$ by replacing all entries in M that

are less than $10$ by zeroes. $($Hint: Use logical switches.$)$

b$.$ Create a new matrix, M$2,$ by replacing all entries in M$1$ that

are greater than $50$ by $100.$

$$ Display M$,$ M$1,$ and M$2$ in your output