unique elliptic curve points

I have few points (0,8),(0,64),(28,1)(28,66),(9,47)(9,20),(54,20)(54,47),(21,10),(21,51)

Is there any matlab command which checks the x coordinate and select only unique point (based on x coordinate)

e.g (0,8),(28,66)(9,47),(54,20),(21,10)

Answer 1

[Bruno Luong]

use UNIQUE command

[sadiqa ilyas]

I have points in this form

     0     8
     0    59
     4    20
     4    47
     5    23
     5    44
     9    20

when i am applying unique I m getting

1
     2
     3
     4
     5
     6
     7
     8
     9
    10
    11

code is

points = [];
for i = 1:length(right_side)
  I = find(left_side == right_side(i));
  for j=1:length(I)
      points = [points;a(i),a(I(j))];
  end
end
points

[sadiqa ilyas]

How to arrange these points in table form

[Bruno Luong]

P=[0     8
0    59
4    20
4    47
5    23
5    44
9    20]

[~,i]=unique(P(:,1));
P(i,:)

[sadiqa ilyas]

It works Thanks but how to arrange in table 8*n form