normalize the vector by taking the difference from the first element

Suppose I have a vector

T
1
2
3

Then I want to normallize T by taking the difference from the first element

T1
0 (=1-1)
1 (=2-1)
2 (=3-1)

How can I simplify the calculation?

[dpb]

Did you try

T=T-T(1);

[alpedhuez]

Thank you.

Answer 1

[Chunru]

T = [1; 2; 3];
T1 = T -T(1)

T1 = 3×1

0 1 2