مدرس المادة
End as a subscript
To access the last element of a matrix along a given dimension, use
end as a subscript. This allows you to go to the final element without
knowing in advance how big the matrix is. For example:
>> q = 4:10
q=
4 5 6 7 8 9 10
>> q(end)
ans = 10
>> q(end-4:end)
ans = 6 7 8 9 10
>> q(end-2:end)
ans = 8 9 10
This technique works for two-dimensional matrices as well:
>> q = [1 2 3;4 5 6;7 8 9]
q=
1 2 3
4 5 6
7 8 9
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