how to append 1 array with half the elements of second array?

I have 2 arrays Arr1=[2 3 4 5] and arr2=[6 7 8 9 10 12] with C=number of elements in arr2 (here, it is 6). So, I want to append array1 with half the elements of array2 e.g arr1=arr1+arr2[C/2]?

Answer 1

[Walter Roberson]

arr1 = [arr1, arr2(1:end/2)]