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+//Chapter 05: Induction and Recursion
+
+clc;
+clear;
+
+//Function to merge & sort
+function [ a1 ]= mergesort (a ,p , r )
+if (p < r )
+q = int (( p + r ) /2) ;
+a = mergesort (a ,p , q ) ;
+a = mergesort (a , q +1 , r ) ;
+a = merge (a ,p ,q , r ) ;
+else
+a1 = a ;
+return ;
+end
+a1 = a ;
+endfunction
+
+//Function to merge
+function [ a1 ]= merge (a ,p ,q , r )
+n1 =q - p +1;
+n2 =r - q ;
+left = zeros ( n1 +1) ;
+right = zeros ( n2 +1) ;
+for i =1: n1
+left ( i ) = a ( p +i -1) ;
+end
+for i1 =1: n2
+right ( i1 ) = a ( q + i1 ) ;
+end
+left ( n1 +1) =111111111;
+right ( n2 +1) =111111111;
+i =1;
+j =1;
+k=p;
+for k = p : r
+if ( left ( i ) <= right ( j ) )
+a ( k ) = left ( i ) ;
+i = i +1;
+else
+a ( k ) = right ( j ) ;
+j = j +1;
+end
+end
+a1 = a ;
+endfunction
+
+arr =[8 2 4 6 9 7 10 1 5 3]
+disp(arr," Given Array:" ) ;
+arr_s =mergesort (arr ,1 ,10)
+disp(arr_s , " Sorted Array:" );